Homely WSN Basic Board V2 is an IoT board to collect environmental data (temperature, humidity, and pressure) and to push them to a centralized server through Wi-Fi. This is the enriched successor of the Basic Board V1, that improves different aspects:
- energy efficiency (20uA during deep-sleep)
- onboard recharge for single-cell Lipo battery
- measurement of battery level based on voltage*
**Управляйте домофоном удаленно!**
Вы не так часто ждете гостей, а переодические звонки Вас достали? Соберите это устройство, и у Вас появится удаленное управление вашим домофоном. Так же возможна интеграция в системы Умного Дома, где вы сможете настроить режим отключения трубки в вечернее время, автооткрывание и автоответ в домофонную линию и прочие, прочие "фенечки", определяемые вашей фантази...
BBB based heating controller
[22 Aug 2016]
I fixed the ULN2803 package and GND on P20. Still need to investigate if there is a pull down resistor needed for Q1
Issues found during assembling the PCB:
- ULN2803 package is incorrect - it should be SOIC18. I will correct the PCB soon
- GND pin in the P20 5V/12V connector is not actually connected to GND
- The heartbeat LED is on...
NodeMCU ESP8266 Multipurpose Custom PCB - Breakout Board
**Currently still Work in Progress - ...problably room for some more improvements....**
Small Footprint, with standard headers usefull with Tasmota, ESPHOME & Home Assistant integration, with almost all IO available and standardized
- Vin Connector can be standard 2 pin or Screw terminal (preferably 5V, but Nodemacu should be ok up to 9V)...
A ESP-12 IoT controller for RGB LED Stripe 5-12V.
3+1 channels through MOSFET, PWM and dimming functionality.
The MOSFETs can be replaced by NPN Power transistors (input resistors are as THT parts placed, the 10k pull down's not needed.
The 4th channel is a Logic level up-converter (3.3V->5V). Driven by a 2N7002, can be replaced with BSS138 or similar. Note that it's is a very small power output...
<p>STM32 sensor Board with 4S BMS, solar panel support, with wind vane, anemometer, soil and air temperature, pressure and relative humidity, acelerometer, IR, visible and UV light sensing capabilities, up to 32GB backup memory storage, and a LoRa 2.4 to 2.5 GHz Communication Module</p>
This board is the core of a LoRa based energy monitor which can be used to monitor the load on Distribution Transformers, Electricity Generators or Electricity Feeders in real-time. The design was inspired by the [Open Energy Monitor Project](https://openenergymonitor.org/). The board can connect to a LoRa gateway up to 15KM away making it possible to monitor a large network of distribution transf...
This is a battery powered sensor board based on the ESP8266 (ESP-12F).
By using a TPL5111 chip the battery consumption can be reduced to about 1µA when the ESP is not enabled. When the TPL5111 chip receives 5V at it's wake up pin this will turn the ESP on by enabling the 3.3V voltage regulator. At this moment you can run any program you want. If you want to turn the ESP off again you have to drive...