Aug 29, 2022 · Hi, I am only getting output on the left speaker when i play back samples on my ESP32 Audio Kit Board V2. As soon as I start the port DIN_MIDI. However, the About. Also, to use something other than an Arduino MIDI interface, a real MIDI enabled keyboard instead. print(sensor_reading); Next we will calculate the analog voltage we multiplying the ADC digital value with a resolution of ESP32 ADC which is 3. In this example, a simple two-node CAN bus network is constructed—one node transmits a message, the other receives it. just I wonder how to adapt the midi in and the whole sampler project. This has been tested on ESP32S3 and ESP32S2 DevKit boards ("ESP32S3 Dev Module" and "ESP32S2 Dev Module"). May 15, 2022 · This project currently requires an ESP32-S3 DevkitC from Espressif, but will work on an ESP32-S2 with some modification. Samples are then stored to an SD card or transferred via UART to the ESP8266 with a transparent UART-to-WiFi firmware. You need to solder header pins on the GND, DT, SCK, and VCC pins to Jul 31, 2019 · Well, now you can lower the frequency of ESP32 down to 80MHz (i. Sign up Product Apr 1, 2024 · It consists of ESP32 SoC, a 40 MHz crystal oscillator, 4 MB Flash IC and some passive components. Demonstration of a first working version of a sampler application for the ESP32 WROVER board. md. Then, connect the GND pin to the ground. MIDI is a communication protocol from the 1980s that connects musical instruments and computers. After Apr 19, 2016 · Espressif ESP32 Official Forum. As the ESP32 has a very very bad ADC, you won´t be able to control by voltages but it would be easy to add a small simple Arduino Nano Pro to add 9 or 10? Analog Pins to it. There are many sample code either provided by the Arduino or the ESP32 IDE. I heard of this before but didn't fix it yet. Aug 6, 2022 · Esp32 sampler to a drone instrument Hi, I wanted to make a drone instrument which plays 4 notes of a wave file which is uploaded to the PSRAM, with selectable timing interval between the notes and selectable notes to play. It will provide output in the form of voltage. begin(I2C_SDA, I2C_SCL); ^ Несколько библиотек найдено The ESP32- A1S is an ultra-small, powerful multifunction audio module, the main chip uses a low-power dual-core 32-bit CPU, the main frequency can up to 240MHZ, and the operating capability up to 600 DMIPS. We will create an example project by interfacing a RS485 Modbus protocol based energy meter (DDM18SD) using MAX485 (TTL to RS485) module and collect current, voltage, and frequency data from the energy meter. ino. SP0 and SP1 are used internally to communicate with the built-in flash memory, and you should not use them for other tasks. (The arrow right button is also for compile and upload). 3Volt, our ESP32 will provide the 0-volt for digital 0 and 3. k. Skip to content * Base Class for both the ADC and I2S sampler **/ class The ESP32-IDF has very good documentation and APIs for those modes and we’ll be using those modes in future tutorials. There are literally hundreds of professionally-sampled disk images floating around the internet, making it potentially a great candidate for an ESP32 / RP2040 "rompler", ie. Nov 11, 2020 · Testing the ESP32 Audio Player. This setting works wonder for the output level on the headphones from barely audible to blowing your head off! gerthalberg. For now I will continue to use the ESP-12E with external ADC/DAC, as its working well. Breakout PCB for the ESP32-A1S module including an audio amp and basic GPIO headers, USB interface In Arduino IDE, the ESP32 board to choose is "ESP32 Dev Module" Use default configuration settings Then Enable PSRAM The USB Micro-B connector on the board is GCT p/n USB3076-30-A available from Digikey, Mouser etc Jul 18, 2021 · Toggle navigation. from a microphone) at very high speeds and I finally used this approach in my ADC class. In that case you can attach a 160x80 display but its connection will change to: MOS: IO23. #include "driver/i2s. I²S is an electrical serial bus interface standard used for connecting digital audio devices together. 2 2957 ES8388 Headphones low Volume and noisy playback Hi, as the title suggests, I want to ask if anyone here gets a nice quality playback of the default samples with this setup. . Here is how you set it up using the ESP32 API: #include "esp_a2dp_api. It supports a wide variety of peripherals such as: capacitive touch, ADC, DAC, I2C, SPI, UART, I2S, PWM and much more. The bitrate of this is 1300000 which I got with this formula: [sample rate (325000)] * [channels (2)] * [bytes per sample (2)]. Plug the ESP32 board into your USB port, and run: ls /dev/tty. 3. It is an optional signal depending on the slave side, mainly used for offering a reference clock to the I2S May 27, 2020 · 2. #ESP32 I2S MEMS Microphone Arduino IDE Example This repository holds some samples for connecting a I2S MEMS microphone to an ESP32 board. >>> print (‘hello Makerguides’) hello Makerguides. Notifications. Below is the ESP32 code that performs the above ESP32 WiFi Re-Connect By Timeout & Restarting. Currently I have a number (2-4) of high-speed ADCs controlled by a host CPU via SPI using 16-bit data words (hence need 2-4 hardware controlled CSn lines). Directly reading from the built-in Analogue to Digital Converts (ADCs) This is useful for one-off readings, but not suitable for high sampling rates. , ESP32-DevKitC, ESP-WROVER-KIT, etc. Try the following: print (‘hello Makerguides’) at the prompt to test the ESP32 code and hit enter. 3 Board at the moment and I get a really noisy sound which is covered by a beep tone in the frequency of the BLINK_LED_PIN. Share ideas. Within the Arduino IDE, select the port corresponding to the Sonatino board (will vary based on your system), and make sure the board is set to "ESP32S3 Dev Module". Deploy the sample code. begin(I2C_SDA, I2C_SCL); ^ esp32_midi_sampler:192:25: error: 'I2C_SCL' was not declared in this scope Wire. May 8, 2021 · In this video tutorial I am sharing some of the methods I have used now and in the past regarding the sampling of audio signals. Jul 20, 2021 · Navigation Menu Toggle navigation. This time we will use the “BLE_server Squeezelite-esp32 is an audio software suite made to run on espressif's esp32 and esp32-s3 wifi (b/g/n) and bluetooth chipsets. Published by pschatzmann on 21. S0 -> IO23. ) A USB cable for power supply and programming; A function generator to create the signal going into ADC1 pins. max 3. I am using a MELIFE ESP-32S. I was just hoping the ESP32 would negate the need for the external chips. SCL: IO22 Note: MIDI_RX_PIN changed from IO18 to IO19 on the ESP32 Audio Kit. cd esp32-examples. it has USB, but it's not typical USB-MIDI, it's MIDI UART. I figured it wouldn't be much different than the example of the The ESP32 fills a hole in the market, and it's a hole right where my graphics stuff is written for, so while it's not ESP32 specific, it also can't very well do truetype realistically on some of the lesser machines, so I guess now that I think about it, my choice of graphics library also sort of dictates the platform. 5Db MINGAIN = 30Db. It is one of the best solutions for DIY Aug 29, 2022 · ESP32 Audio Kit V2. h IO22 will be used for MIDI in. You should see a device name like /dev/tty. ESP32 Audio Kit V2. usbserial-DN0281FC (the letters at the end will be different). Since ESP32 already has a USB-to-serial converter, you can access the REPL directly from your PC. a LMS and enjoy multi-room audio This software is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4. 7 watt stereo amplifier and a second dedicated headphone amplifier. The framework is also suitable for the company's official development board such as esp-lyart, which also easily adds functions in the most comprehensive way, from simple to complex development of audio applications 8-bit DAC means, ESP32 can convert the digital input (0 to 255) to equivalent analog output. I am using the standard TX2 pin for testing. Something was messed up. The advantage is, that it can have a collection of samples on the sdcard which then can be loaded into the PSRAM when needed. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with ESP32. After that, I tried the https: Esp32 sampler to a drone instrument Hi, I wanted to make a drone instrument which plays 4 notes of a wave file which is uploaded to the PSRAM, with selectable timing interval between the notes and selectable notes to play. Feb 17, 2017 · My application is a AFSK modem. To use I2S with MicroPython you will need to make a custom MicroPython build and integrate a pull request into the build. ESP32 contains two I2S peripheral(s). 2. The analog modeling engine is an We would like to show you a description here but the site won’t allow us. At first I thought hooking up an I2S microphone would be straight forward, but it seems that I2S is a somewhat new or neglected interface. ESP32-S3 based sampler handles gigabytes of PCM WAV files, up to 19 stereo voices polyphony, CD quality - copych/ESP32_S3_Sampler Sample code for reading audio samples from the ESP32 ADC using I2S - atomic14/esp32_audio. Apr 26, 2021 · For the new Sampler, a bigger board, a ESP32 Audio Kit Board is needed - 15€ from china. The board must be reset or power cycled to make the new code take effect. So I commented out the blink process code which removed the repeating beep tone, but what stays is a steady noise floor and really silent sample playback. Apr 19, 2016 · I want to port an ESP8266-based (+ host CPU) solution to the ESP32. Oct 7, 2019 · The list of features the tiny picoAUDIO board packs is impressive, starting with a 3. I never got around to testing the ESP32 DAC, is there any documentation on the DAC sample rate? pitch bend? · marcel-licence esp32_midi_sampler · Discussion #19 · GitHub. Accuracy: The in-built temperature sensor accuracy varies between +/- 1 to +/- 3 Apr 19, 2016 · Espressif ESP32 Official Forum. Jul 18, 2021 · ESP32 Sketch Data Upload should compile and upload the firmware. 0 forks Report repository Releases No releases Plug the ESP32 board to your computer. Confirm the advertisement on the smartphone. In this guide you’ll learn how to use the BME680 sensor module with the ESP32 board using Arduino IDE. h". This means that you are allowed to remix, transform, adapt, and build upon the software included in this repository, you can copy and redistribute it in any medium or format, under the following terms: The ESP32 code does the following tasks: Creating a web server that listens for HTTP requests from a web browser. The comparison is a little skewed because the esp8266 just sends a small amount of data over TCP while the esp32 publishes a message over MQTT/TLS and receives a subscription message. 1 watching Forks. Stars. CS: IO5. wav it is super noisy and sounds really har Apr 21, 2022 · The HX711 amplifier is a breakout board that allows you to easily read load cells to measure weight. A Synth, a sampler, a looper, a drum-computer – and a very cool sounding Organ emulation – only the organ is not published on github, all the other things are well publieshed and the code is readable. A minimal breakout board for the ESP32-S3-WROOM module - GitHub - eggsampler/ESP32-S3-Breakout: A minimal breakout board for the ESP32-S3-WROOM module. 3v or lower ⇒ can connect LED directly to ESP32's pin. Being an SoC, the ESP32-S chip contains an entire computer—the microprocessor, RAM, storage, and peripherals—on a single chip. Currently waiting for ESP-IDF release with full s2 support. You might notice this is less than the ESP32. It currently uses the secondary programmable USB port to emit MIDI to. Sign in The ESP32-LyraT was originally designed for use in smart speakers. ESP32 DAC Cosine Wave Generator Mode. Jun 7, 2023 · It is the easiest way to test out the code and run commands. Sep 12, 2020 · There are a few options out there for getting analogue audio data into the ESP32. The ESP32 may sometimes fail to connect to a WiFi network temporarily and the best way to get the connection back is just to restart and re-attempt the connection once again. I2S - Inter-IC Sound, correctly written I²S pronounced “eye-squared-ess”, alternative notation is IIS. I built esp32_midi_sampler on esp32 Audio kit v. In order to convert voltages larger than Vref, input voltages can be attenuated before being input to the ADCs. That is a real issue. Selecting wav files uploaded to LittleFS Dec 21, 2021 · Microcontrollers and MIDI – An Overview. begin(MIDI_CHANNEL_OMNI); it pulls the TX pin high and it stays high. It is used to communicate PCM (Pulse-Code Modulation) audio data between integrated circuits in an electronic device. #13. This is the "device" file used for talking to the board over the USB serial port. You’ll learn how to wire the sensor to the ESP32 Jun 1, 2023 · Esp32 sampler to a drone instrument souravlal asked Aug 6, 2022 in Q&A · Unanswered 3 1 You must be logged in to vote. Useful for analogue microphones such as the MAX4466 and the Apr 19, 2016 · Espressif ESP32 Official Forum. Once the code is ready, connect the speaker to GPIO 25 of ESP32 through LM386 or any other amplifier module. The BME680 is an environmental digital sensor that measures gas, pressure, humidity and temperature. Now it is fixed: #58 The variable is actually also not used in this version but might be handy soon when using the arp module or maybe other timed base controlled parameters. Engage with other community member The heart of the ESP32-CAM is an ESP32-S System-on-Chip (SoC) from Ai-Thinker. To begin, take the TJA1050 CAN transceiver module and connect its VCC pin to the VIN on your ESP32. Example of output on the Arduino IDE Apr 24, 2021 · 👋 Welcome! We’re using Discussions as a place to connect with other members of our community. *. Among different chips, the Vref varies, the median is 1. The examples distributed by adafruit only apply for Dec 10, 2018 · In the esp32 case the chart uses the values for the “pushed” version, which sets the listen_interval to 5 seconds and removes the ACK delay in LwIP. Now connect the ESP32 to Laptop and upload the code. h) Connection of the ADC multiplexer: EN -> Ground. [Ivan Voras] shows how to use interrupts to service the ESP32 analog to digital converters when Apr 30, 2021 · But there is a much better way by using the extended ESP32 I2S functionality: You can use this to sample an analog signal (e. h as active. No packages published. The common between controlling a LED and an electric lamp: ESP32 code programs the ESP32's output pin to HIGH / LOW to turn THEM on/off . Learn how to get time, date, day of week, month, year in ESP32 using Real-Time Clock DS3231 module, how to program ESP32 step by step. Additionally it had 8x analogue VCFs and VCAs, so was more a sampling synthesizer than a straight sampler. I want to port an ESP8266-based (+ host CPU) solution to the ESP32. Select the Port (if you don’t see the COM Port in your Arduino IDE, you need to install the CP210x USB to UART Bridge VCP Drivers ): 3. This is probably fine for most things, but when you have deployed devices operating for weeks to months at a time remotely, the drift is very noticeable. These peripherals can be configured to input and output sample data via the I2S driver. Link to ES8388 User Guide without the Chinese yellow stickers. December 2021. I have downloaded and uploaded your new code to my ESP32 Audio-kit, but it al Plug Sonatino into your computer using a USB-C cable. on Sep 29, 2021. Other files are found automatically by arduino and also compiled and linked together Jun 29, 2021 · Polyphony troubles #13. The project has been tested on the ESP32 Audio Kit (with ES8388 audio codec) The project has been tested on the ESP32 Audio Kit (with AC101 audio codec) After uploading the firmware you should hear the metronome. For the serial monitor to work, you'll also Open Azure IoT Device Workbench Examples. This can be implemented by adding a timeout counter and allowing some time for ESP32 WiFi connection establishment. Sound quality can be changed using the potentiometer of the Amplifier module. 3/4095. The ADC multiplexer can be used (other wise please remove #define ADC_TO_MIDI_ENABLED from config. We’ll send a structure that contains a variable of type char, int, float, and boolean. 1 V. The I2S class works on ESP32 processors and is implemented using Espressif's ESP-IDF API. ino). The ESP32 DAC has a built-in cosine waveform generator that can directly give you a cosine waveform on the selected output channel with controllable frequency, amplitude, and phase shift. The HX711 communicates with the microcontroller using two-wire interface (Clock and Data). marcel-licence / esp32_midi_sampler Public. Select ESP32 Arduino. ino: In function 'void setup()': esp32_midi_sampler:192:16: error: 'I2C_SDA' was not declared in this scope Wire. com 4242 Test Test What I've tried so far: Create a wifi client and listen to an answer: Connect to a tcp server; write a message; wait and read the answer May 22, 2020 · He created something like a small series of Sound-Devices based on the ESP32 or ESP32 A1S Audio-Board. I am trying to send MIDI via the serial2 port (dedicated UART). Single notes were fine, chords dropped notes. The ESP32 is a development board that combines Wi-Fi and Bluetooth wireless capabilities, and it’s dual core. 2 2957 with ES8388 using the following code: Sampler_NoteOn(2, 40, 1); Sampler_NoteOff(2, 40 Mar 14, 2024 · esp32 as akai-style sampler, dreamed by Gemini Resources. There are 4 available attenuation options, the higher the attenuation is, the higher the measurable input ESP32 只需极少的外围器件，即可实现强大的处理性能、可靠的安全性能，和 Wi-Fi & 蓝牙功能。 超低功耗 ESP32 专为移动设备、可穿戴电子产品和物联网应用而设计，具有业内高水平的低功耗性能，包括精细分辨时钟门控、省电模式和动态电压调整等。 The ESP32 integrates 4 SPI peripherals: SPI0, SPI1, SPI2 (commonly referred to as HSPI ), and SPI3 (commonly referred to as VSPI ). It's easy to plug the buzzer connectors to an audio output so that wouldn't be a problem. Example 1: Simple two-node CAN Network. Hope this helps Sep 26, 2022 · I am trying to use the esp32_midi_sampler with the ESP32-LyraT v4. Interrupting while someone is talking is rude for humans, but smart for computers. I chose an ESP32-Cam since it already has a PSRAM and the camera is communicating via parallel 8 bits. Then the IoT Device Workbench Example window is shown up. This board is a minimal breakout board for the new ESP32-S2-WROOM module from Espressif. Upon receiving a request from a web browser, the ESP32 responds with the following information: HTTP header. Jan 29, 2020 · To get you started with ESP-NOW wireless communication, we’ll build a simple project that shows how to send a message from one ESP32 to another. A development board with ESP32 SoC (e. MIDI keyboards nowadays usually have USB support Jun 27, 2021 · Please ensure that all files are in the same directory when opening esp32_midi_sampler. Without relay, the high voltage will destroy ESP32. 25v for 255. Some knowledge of the ESP-IDF API is helpful to understand the code. 2 Uploaded the sketch, with the AUTO_LOAD_PATCHES_FROM_LITTLEFS parameter everything worked fine, the wav file was played from memory. Aug 25, 2022 · The midi sampler sampler loads a maximum of also 4MB from either sd card or the littleFs to the PSRAM for playback. Mar 23, 2020 · The ESP32-S2 has a single core LX7 running at 240 MHz along with a RISC-V-based coprocessor. DC: IO0. Select your Board in Tools > Board menu (in my case it’s the DOIT ESP32 DEVKIT V1) 2. Then, the demo will automatically switch to looped playback of the sampled content. An I2S bus that communicates in standard or TDM mode consists of the following lines: MCLK: Master clock line. If a green LED does not light up on the board, try a different USB port or cable. You can use HSPI and VSPI to communicate with other devices. e. If I play back the sine_plug. At 240MHz, filtering 1/8sec worth of samples with 2 x 6 th -order IIR filters takes less than 5ms. sample player. print("Volatge reading = "); Aug 28, 2021 · ES8388_WriteReg(ES8388_ADCCONTROL10, 0xFF); // 0xFF: ALC = Stereo, MAXGAIN = 35. I'm using the ESP-WROVER-KIT from espressif and the Teensy audio Mar 30, 2023 · Using Arduino Project Guidance. HTTP body: This includes HTML content and the value read from the sensor. Controlling LED: LED can works with 3. Polyphony troubles. With 3. Be relatively easy for a hobbyist to order & assemble. To compile set board to: ESP32 Dev Module Ensure "#define ESP32_AUDIO_KIT" is set in config. Nov 23, 2022 · I want to do the same request as with the netcat "nc" command on my computer with an ESP32: Computer: $ nc tcpbin. I use MIDI-OX to monitor the incoming MIDI on my PC and route it to my sound card. C:\esp32_midi_sampler\esp32_midi_sampler. See full list on toptal. analog_voltage = sensor_reading * 3. Measuring Range: The ESP32 temperature sensor can measure a range of temperatures from -40 to 125 degrees Celsius. Some of my use cases for the new ESP32-S2 involve utilising the new ULP co-processor. USB Mode must be set to USB-OTG (TinyUSB) on ESP32S3. I'm also using an external I2S clock, so this is running as a "slave device". The sensor communicates with a microcontroller using I2C or SPI communication protocols. The ESP32-S3 ADCs can measure analog voltages from 0 V to Vref. I have similar code working with my Uno, but wanted to use the dedicated UART (and WiFi) of the The ESP32 is the ESP8266 successor loaded with lots of new features. After changing various bits of code, I decided to rewind back to the original code as Marcel has presented and sort out polyphony. Ensure that PSRAM is enabled. for battery operation) and filtering and summation of I2S data will still take less than 15% of single core processing time. 1. Jul 29, 2023 · Technical Specifications and Features: The Temperature Sensor module uses an 8-bit ADC and a DAC to make adjustments for the temperature offset. I suppose this is not happening fast anough to trigger sounds from sd card directly without noticable Apr 11, 2020 · The RC oscillators seem to vary quite a bit with temperature and also between production runs. However, in practical, output by DAC is a bit lower i. This version will sample 30 seconds of single channel (left / right) audio with a samplerate of 32000. In this Blog I would like to look into the options how we can connect a microcontroller with a Midi Keyboard. Use a minimal amount of components. Though since the ESP32-LyraT is not designed to be a synthesizer, it has some limitations, e. It offers the following capabilities Stream your local music and connect to all major on-line music providers (Spotify, Deezer, Tidal, Qobuz) using Logitech Media Server - a. You wire the load cell wires on one side, and the microcontroller on the other side. The connections of the ESP32 board with the RS485 module are the same as NodeMCU. 3 / 4095; Serial. The connection is defined below: SDA: IO21. We need a relay in between ESP32 and the high voltage devices. Other files will be opened automatically by arduino. The good thing about ESP-WROOM-32 Module is the PCB has edge castellations. Apr 23, 2022 · This is a lot higher than typical audio, but according to the ESP32 datasheet it should be capable of bit clocks up to 40 MHz. One such board is the ESP32 DevKit Board. Dec 8, 2019 · December 7, 2019. Use F1 or Ctrl+Shift+P (macOS: Cmd+Shift+P) to open the command palette, type Azure IoT Device Workbench, and then select Open Examples. 16Bit, 44. While the chip’s capabilities are quite impressive, the ESP32-CAM development board adds even more features to the mix. Sep 7, 2021 · @marcel-licence Since I was unable to reload samples from SD card I though I could give a try to your new updated code. Find ESP32 Get Started and click Open Sample button. com To use it, set the define "AS5600_ENABLED" in config. ESP32 (Slave) Connections. Readme Activity. The file to open is always the one which has the same name as the containing folder (esp32_midi_sampler. 1KHz and a lot of fun. One ESP32 will be the “sender” and the other ESP32 will be the “receiver”. 3volt for digital 255. 0 stars Watchers. Other files are found automatically by arduino and also compiled and linked together Mar 27, 2021 · ESP32 drum computer / sample player / midi sequencer (Arduino audio project)---This little project shows that you can use the ESP32 also as a little drum com Jan 15, 2022 · Thank you. Mar 22, 2024 · In this tutorial, we will discuss how we can interface ESP32 (as master) to any RS485 (Modbus RTU) based sensor (as slave) using Arduino IDE. With your Arduino IDE open, follow these steps: 1. QUN synthesizer successfully uses it to achieve affordable pricing as a synthesizer. So, what third-part manufacturers do is take the ESP-WROOM-32 Module and design a break-out board for this module. Onboard is 320K of RAM and 128K of ROM. Readme. g. The following is the hardware connection: In addition to the current ESP32 and ESP8266 hardware offerings, Espressif now offers the ESP32 Azure IoT Board, a development board that includes key sensors, OLED screen, and support for Wi-Fi & Bluetooth protocols. It also has all of the I/O you would expect Packages. Mar 4, 2022 · Hello. Or, download and program your ESP32 board using one of the pre-built firmware binaries. Only in that case arduino can do its magic =). 🙏. We hope that you: Ask questions you’re wondering about. Just make sure to connect B and A of RS485 module (slave side) with B and A pins of RS485 module (master side) correctly. It would be awesome if it could display the waveform too as the screen is really crisp even if small. SCLK: IO18. Next, we will explain the connections of the ESP32 slave with the RS-485 module, LED and the OLED display. It shows you three methods: Serial. Once the code is uploaded, ESP32 starts playing the Audio. Using I2S to read from the built-in ADCs using DMA. Jun 1, 2023 · So, after wiring properly, and enabling NOTE_ON_AFTER_SETUP I had no sound (using esp32_midi_sampler). It was designed with a few criteria in mind, Breakout as many pins as possible, if not all, from the module. Jan 12, 2020 · Looking for guidence using the Serial2 on an ESP32. Hi everyone! I'm trying to dump the data from an external parallel 8 bit ADC, it goes along with the clock signal for proper sync which is 6mhz. 0 License. sa se io va ss tj nh da ki hs