wiki.raudys.com - esp32

ads1220

Anonymous (anonymous@undisclosed.example.com) — 2021-05-29T09:37:17+00:00

24 bit ADC analog to digial

arduino

Anonymous (anonymous@undisclosed.example.com) — 2020-03-07T08:53:21+00:00

visual studio code (VSC) and arduino

audio_cable

Anonymous (anonymous@undisclosed.example.com) — 2021-05-24T16:11:42+00:00

3.5 audio jack how to connect microphone pc

ble_serial_v1

Anonymous (anonymous@undisclosed.example.com) — 2019-10-01T18:55:45+00:00

ESP32 bluetooth BLE serial/UART example - forward: serial <=> BLE #include #include #include #include BLECharacteristic *pCharacteristic; bool deviceConnected = false; #define SERVICE_UUID "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID #define CHARACTERISTIC_UUID_RX "6E400002-B5A3-F393-E0A9-E50E24DCCA9E" #define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E" class MyServerCallbacks: public BLESe…

bluetooth

Anonymous (anonymous@undisclosed.example.com) — 2019-09-29T14:51:02+00:00

#include "BluetoothSerial.h" #if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED) #error Bluetooth is not enabled! Please run `make menuconfig` to and enable it #endif BluetoothSerial SerialBT; void setup() { Serial.begin(115200); SerialBT.begin("ESP32test"); //Bluetooth device name Serial.println("The device started, now you can pair it with bluetooth!"); } void loop() { bool a = SerialBT.hasClient(); static bool b = a; if (a != b) Serial.printf("\nhasClient: %s…

book

Anonymous (anonymous@undisclosed.example.com) — 2019-11-11T15:33:18+00:00

paskaita Kolban's book on ESP32

capacity_measure

Anonymous (anonymous@undisclosed.example.com) — 2025-09-21T14:22:33+00:00

measure capacity for wires in order to detect water level. how mutch wires are submerged in water #define CAP_PIN 34 // ADC input-only #define DRIVE_PIN 25 // per 10 MΩ (RC matavimas) #define FAST_PIN 27 // tiesiogiai į ● greitam pre-charge/discharge #define R_OHMS 10000000.0 // 10 MΩ const int THRESH_ADC = 2000; // ~1.6 V (matavimo slenkstis) const int ADC_LOW_FAST = 150; // ~artima 0 V (fast discharge) const int ADC_HIGH_FAST …

dac_audio

Anonymous (anonymous@undisclosed.example.com) — 2019-10-12T10:24:33+00:00

esp32 has 2 DAC audio channels

deep_sleep

Anonymous (anonymous@undisclosed.example.com) — 2021-02-20T13:22:57+00:00

esp32 deep sleep esp_sleep_enable_timer_wakeup(5 * 1000000 ); //5 seconds Serial.println("Setup ESP32 to sleep for every " + String(5) + " Seconds"); Serial.println("Going to sleep now"); Serial.flush(); esp_deep_sleep_start(); esp32 light sleep

direct_pin_data_copy

Anonymous (anonymous@undisclosed.example.com) — 2019-09-27T04:34:14+00:00

copy data from input pin to output pin - example ws8212 data stream fast way to copy read/write register values void loop() { int v1 = 0; portDISABLE_INTERRUPTS(); for(;;) { auto v1 = (GPIO_REG_READ(GPIO_IN_REG) & BIT(25)); if (v1) { GPIO_REG_WRITE(GPIO_OUT_W1TS_REG, BIT(27)); //cnt3 = 0; } else { GPIO_REG_WRITE(GPIO_OUT_W1TC_REG, BIT(27)); //cnt3 ++; } cnt3 ++; if (cnt3 % 1000000 == 0) { //Serial.println("loop"); port…

doit

Anonymous (anonymous@undisclosed.example.com) — 2019-05-27T12:35:48+00:00

Node MCU IoT DOIT ESP32 ESP 32 const int LED_PIN = 2; //esp32 doit

dual_core

Anonymous (anonymous@undisclosed.example.com) — 2019-05-25T21:35:21+00:00

run dual core script /********* Rui Santos Complete project details at http://randomnerdtutorials.com *********/ TaskHandle_t Task1; TaskHandle_t Task2; // LED pins const int led1 = 2; const int led2 = 4; void setup() { Serial.begin(115200); pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); //create a task that will be executed in the Task1code() function, with priority 1 and executed on core 0 xTaskCreatePinnedToCore( Task1code, /* Task function. */ …

ehernet

Anonymous (anonymous@undisclosed.example.com) — 2020-09-28T13:46:27+00:00

UIPEthernet esp32 HanRun HR911105A ENC28J60

enc28j60

Anonymous (anonymous@undisclosed.example.com) — 2020-09-28T20:19:35+00:00

Ethernet esp32 internet tcp/ip enc28j60 HanRun HR911105A max link speed 10mbit max real speed 30kb/s you can increase speed by speeding up spi SPI.begin(); SPI.setFrequency(20000000)

esp32_battery

Anonymous (anonymous@undisclosed.example.com) — 2019-05-27T11:31:50+00:00

* LED on 16 pin * press boot before upload #include void setup() { Serial.begin(115200); pinMode(16, OUTPUT); } void loop() { static int zzz = 0; Serial.println(zzz++); digitalWrite(16, HIGH); delay(1000); digitalWrite(16, LOW); delay(1000); // wait for a second }

esp32-c6_super_mini_board

Anonymous (anonymous@undisclosed.example.com) — 2026-03-22T12:17:41+00:00

pirma karta - SPAUDI boot pajungi usb tada spusteli reset ir tada atelidi boot Arduino IDE → Tools → USB CDC On Boot → Enabled. ESP32-C6 Super Mini Board The ESP32-C6 Super Mini is an ultra-compact development board based on the ESP32-C6 SoC, designed for modern low-power IoT applications where size matters.

esp32-poe

Anonymous (anonymous@undisclosed.example.com) — 2020-05-06T07:01:39+00:00

SP32-POE IoT development board with 100Mb Ethernet, Power over Ethernet, WiFi, BLE, programmer

i2s_udp

Anonymous (anonymous@undisclosed.example.com) — 2020-10-26T21:56:20+00:00

listen esp32 i2s microphone $ vlc --demux=rawaud --rawaud-channels=1 --rawaud-samplerate=48000 udp:@:7355

i2s

Anonymous (anonymous@undisclosed.example.com) — 2020-09-30T04:16:46+00:00

MH-ET LIVE Omnidirectional Microphone Module I2S Interface INMP441 MEMS High Precision Low Power Ultra small volume for ESP32 esp32 i2s microphone tik l/r ruti buti GRND veikia man ir 16 ir 32 bitai: I2S_BITS_PER_SAMPLE_16BIT I2S_BITS_PER_SAMPLE_32BIT

imp23absu

Anonymous (anonymous@undisclosed.example.com) — 2021-05-18T08:43:56+00:00

IMP23ABSU ultrasound microphone sensors Ultrasound bandwidth (up to 80kHz)

lolin32

Anonymous (anonymous@undisclosed.example.com) — 2019-07-29T21:49:01+00:00

led pin 5 void setup() { pinMode(5, OUTPUT); } void loop() { digitalWrite(5, !digitalRead(5) ); delay(1000); }

lora

Anonymous (anonymous@undisclosed.example.com) — 2019-10-24T05:47:26+00:00

/********* Modified from the examples of the Arduino LoRa library More resources: https://randomnerdtutorials.com *********/ #include #include //define the pins used by the transceiver module #define ss 5 #define rst 26 //14 #define dio0 2 int counter = 0; void setup() { //initialize Serial Monitor Serial.begin(115200); while (!Serial); Serial.println("LoRa Sender"); //setup LoRa transceiver module LoRa.setPins(ss, rst, dio0); //replace the LoRa.begin(-…

mh-et_live_1.54-inches_e-paper

Anonymous (anonymous@undisclosed.example.com) — 2021-11-16T12:33:37+00:00

MH-ET LIVE 1.54-inches E-Paper epaper e-ink eink ESP32 new version: defaultinis pvz veikia tik portus reikia pakeist new lib - recomended // GxEPD2_MinimumExample.ino by Jean-Marc Zingg // purpose is e.g. to determine minimum code and ram use by this library // see GxEPD2_wiring_examples.h of GxEPD2_Examp…

mh-et_live

Anonymous (anonymous@undisclosed.example.com) — 2019-06-06T20:13:59+00:00

ESP32 MH-ET Live hw665 led pin 2

olimex

Anonymous (anonymous@undisclosed.example.com) — 2020-10-26T21:57:31+00:00

olimex esp32 ethernet is super fast 3,509,720 b/s 3,509,914 b/s 3,510,135 b/s 3,510,324 b/s 3,510,501 b/s 3,510,691 b/s 3,510,849 b/s 3,511,031 b/s #define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT #define ETH_PHY_POWER 12 #include ETH.begin();

pcm1802

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T06:42:46+00:00

pcm1802 esp32 SCK is System clock input PDW is Power-down control which is active low. LRCK is Sampling clock input and output FSY is Frame synchronous clock input and output BCK is Bit clock input and output And DOUT is simply serial output.

pwm

Anonymous (anonymous@undisclosed.example.com) — 2019-07-29T22:02:31+00:00

esp32 pwm #include // const int LED_PIN = 5; //lolin32 const int LED_PIN = 2; //esp32 doit // const int LED_PIN = 16; //lolin with battery void setup() { Serial.begin(115200); ledcAttachPin(LED_PIN, 1); ledcSetup(1, 12000, 8); } void loop() { static int zzz = 0; Serial.println(zzz++); for(int dutyCycle = 0; dutyCycle <= 255; dutyCycle++) { ledcWrite(1, dutyCycle); delay(2); } for(int dutyCycle = 0; dutyCycle <= 255; dutyCycle++) { ledcWrite(1, 2…

raw

Anonymous (anonymous@undisclosed.example.com) — 2021-11-08T18:11:10+00:00

esp32 RAW to enter flash mode * en -> LOW * IO00 -> LOW * en -> HIGH * IO00 -> HIGH * after flashing one more time * en -> LOW -> HIGH to reset * CABLE * RX->TX * TX->RX Reikia kondensatoriaus ir didelio, pvz 1000mf deep sleep uses 0.01 ma

rmt

Anonymous (anonymous@undisclosed.example.com) — 2019-06-03T05:19:13+00:00

neopixel, WS2812B driving on ESP32 works on Arduino:

rtc_ram

Anonymous (anonymous@undisclosed.example.com) — 2020-03-21T14:52:18+00:00

esp32 this maximum RTC ram you can use #define MAX_RTC_RAM_SIZE 895 RTC_DATA_ATTR int data[MAX_RTC_RAM_SIZE]; RTC_DATA_ATTR int data_ptr = 0; //total ram (895+1)*4=3584

rtc

Anonymous (anonymous@undisclosed.example.com) — 2020-03-26T15:13:55+00:00

esp32 deep sleep RTC time drift

sk6812

Anonymous (anonymous@undisclosed.example.com) — 2019-08-10T13:45:54+00:00

SK6812 RGBW

softrf

Anonymous (anonymous@undisclosed.example.com) — 2019-10-19T14:54:53+00:00

SoftRF boud rate 38400 AP mode pass: 12345678

square_wave

Anonymous (anonymous@undisclosed.example.com) — 2021-05-10T20:01:39+00:00

example how to generate 20MHz square wave at 50% duty on GPIO18. #include "driver/ledc.h" ledc_timer_config_t ledc_timer = { .speed_mode = LEDC_HIGH_SPEED_MODE, .timer_num = LEDC_TIMER_0, .bit_num = 2, .freq_hz = 20000000 }; ledc_channel_config_t ledc_channel = { .channel = LEDC_CHANNEL_0, .gpio_num = 18, .speed_mode = LEDC_HIGH_SPEED_MODE, .time…

timer_blink

Anonymous (anonymous@undisclosed.example.com) — 2019-10-20T15:43:05+00:00

blink led based on harware timer void setup() { pinMode(16, OUTPUT); hw_timer_t * timer = timerBegin(0, 80, true); timerAttachInterrupt(timer, [](){ digitalWrite(16, !digitalRead(16)); } , true); timerAlarmWrite(timer, 100000, true); timerAlarmEnable(timer); } void loop() {}

touch

Anonymous (anonymous@undisclosed.example.com) — 2019-10-16T17:58:08+00:00

ESP32 touch sensor you get noise on touchRead: you must use this code: void setup() { Serial.begin(2000000); } int touchRead_(int t) { int r1 = touchRead(t); int r2 = touchRead(t); return r1>r2?r1:r2; } void loop() { int t0 = touchRead_(T0); int t1 = touchRead_(T1); int t2 = touchRead_(T2); int t3 = touchRead_(T3); int t4 = touchRead_(T4); int t5 = touchRead_(T5); int t6 = touchRead_(T6); int t7 = touchRead_(T7); int t8 = touchRead_(T8); int t9 = touchRead_(T9…

ttgo_esp32_lora_oled

Anonymous (anonymous@undisclosed.example.com) — 2019-12-03T21:07:24+00:00

lora 433 esp32 ttgo

ttgo_esp32_oled

Anonymous (anonymous@undisclosed.example.com) — 2019-10-20T15:36:18+00:00

TTGO ESP32 + OLED + battery SSD1306 Can program 1 extra LED (connected to GPIO16 [D0]) OLED Unlike on other ESP32 boards with OLEDs, the OLED's I2C SDA and SCL pins are connected as follows: SCL - Pin 4 SDA - Pin 5

ttgo_esp32_t-beam

Anonymous (anonymous@undisclosed.example.com) — 2019-10-20T10:08:42+00:00

ttgo_esp32

Anonymous (anonymous@undisclosed.example.com) — 2021-02-18T19:11:20+00:00

TTGO-T8-ESP32 CD card support deep sleep uses 2ma battery :( deep sleep uses 3.8ma battery :( led pin 21

ttgo_taudio_v1.6_esp32-wrover

Anonymous (anonymous@undisclosed.example.com) — 2021-06-25T09:29:18+00:00

TTGO TAudio V1.6 ESP32-WROVER esp32 audio i2s veikiantis grojimo kodas: /* TTGO T-Audio I2C pins */ #define I2C_SDA 19 #define I2C_SCL 18 /* TTGO T-Audio pins */ #define I2S_BCK 33 #define I2S_WS 25 #define I2S_DOUT 26 #define I2S_DIN 27 #include #include /* https://github.com/CelliesProjects/wm8978-esp32 */ #include /* https://github.com/schreibfaul1/ESP32-audioI2S */ /* M5Stack WM8978 MCLK …

watchdog

Anonymous (anonymous@undisclosed.example.com) — 2022-04-25T17:10:56+00:00

esp32 watchdog #include "esp_system.h" void IRAM_ATTR resetModule() { ets_printf("reboot\n"); esp_restart(); } //setup timer = timerBegin(0, 80, true); //timer 0, div 80 timerAttachInterrupt(timer, &resetModule, true); //attach callback const int wdtTimeout = 3000; //time in ms to trigger the watchdog timerAlarmWrite(timer, wdtTimeout * 1000, false); //set time in us timerAlarmEnable(timer); //enable interrupt //loop timerW…

wemos_light

Anonymous (anonymous@undisclosed.example.com) — 2021-02-18T19:15:37+00:00

Lolin light - lolin32 light ESP32 ESP-32 REV1 CH340 diymore for WEMOS Lite V1.0.0 WiFi Bluetooth Development Board Antenna ESP-32 ESP32 CH340 CH340G Rev1 MicroPython 4MB Micro USB wemos light esp32 deep sleep uses 0.68ma using charged li-ion battery

wemos

Anonymous (anonymous@undisclosed.example.com) — 2019-07-29T21:35:38+00:00

wemos pro esp32

wifimanager

Anonymous (anonymous@undisclosed.example.com) — 2020-05-27T11:18:16+00:00

WIFIMANAGER ESP32

wm8782

Anonymous (anonymous@undisclosed.example.com) — 2021-05-18T09:33:14+00:00

WM8782 i2s ADC esp32 some code that helped: #include const i2s_port_t I2S_PORT = I2S_NUM_0; #include "driver/mcpwm.h" void setup() { Serial.begin(115200); Serial.println("Configuring I2S..."); esp_err_t err; int SAMPLE_RATE = 8000; //44100; //16000; //44100; //44100; // 100000; //176400; //96000; //96000; const i2s_config_t i2s_config = { .mode = i2s_mode_t(I2S_MODE_M…