Board is design to be used on battery - should work with lipo battery - the used LDO - MPC1700 has low dropout voltage and quiscent current.
- battery voltage measurement
- wake-up from deep sleep
- onboard led (or not)
- easy accesible I2C pins
- manual or automatic code upload
TDA7439 + NodeMCU + Aptx module audio board
OLD version, noisy.
New version with ground separation: (https://easyeda.com/fxndstrs/tda7439)
A fully featured board based on ESP8266 and MAX31855 for managing temperature of electric ovens either by on-off or by pid control. The board supports 2 independent temperature probes and 2 relays for 2 independent heaters. All the operations (set temperature, start, stop, status monitoring) are performed by accessing a standard html webpage with a browser (software is found at https://github.com/...
Этот проект MQTT-ModBusRTU шлюза на ESP8266 https://ali.ski/XOz3gN на базе прошивки ESPEasy.
Устройство можно собрать в несольких вариантах:
1. В корпус на ДИН рейку, с питанием от 7 до 24В
2 Миниатюрным блоком в коробочке размером приблизительно 5х7х3см с двумя вариантами питания либо 7-24В (встроенный блок питания на плате, либо 220В при установке на плату AC-DC преобразователя типа вот такого...
3 Channel (RGB) 10A/chan, WeMos LED Driver 12-24V
Specifically designed for 24V RGB LED strips
Designed to be DIN Rail mounted in a small enclosure next to a 24V power supply for use for larger home LED installations (under cabinet, Decks, etc)
Hosts a webpage to interface to change colors from a smart phone.
rx/tx and I2C broken out for external interfacing specifically a for nextion display...
Shield for Wemos D1 Mini. It provides two dedicated inputs and two level shifted GPIO which can be inputs or outputs each with supply voltage, and ground terminals.
Two inputs are for 3.3V devices with provisions for optional pullup resistors. These can be used with 1-wire devices requiring pullup. including 1-wire devices.
Two additional GPIO are for 5V devices with level shifters to provide...