Library to use pcf8591 i2c analog IC with Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read analog value and write analog value with only 2 wire. PCF8574 library. i2c ...

Hardware and software to create button type devices for multiple uses. Messages sent over ESP-Now or MQTT. DC or battery powered, can be triggered by SPST switches with low/high edge or by rocker ...

At the heart of the ESP-01 module is the ESP8266 chip with at least two boot modes — the normal mode and the programming/flash mode. The latter refers to uploading any software (or firmware) to the ...

ESP-01 is a tiny and useful piece of hardware. It has a 32-bit MCU, 2.4GHz 802.11 b/g/n WiFi, 1MB flash memory, and several other useful embedded features. Such ...

In case you missed it, the big news is that a minimal Arduino core is up and working on the ESP32. There’s still lots left to do, but the core functionality — GPIO, UART, SPI, I2C, and WiFi — are all ...

Now let’s look at the simple workflow of the Rainmaker and how it works. Once the ESP32 is programmed with ESP RainMaker firmware, the ESP32 will generate and display a QR code in the serial monitor ...