ESP8266 ESP-12 minimal stabilized circuit schematic and PCB
With breadboard friendly headers and Wemos D1 mini pin numbers
Designed for battery operation:
MCP1700 or MCP1702 (250mA, 4uA quiescent current)
MCP1825 (500mA, 220uA quiescent current)
VIN: max. 6V
It will also work without the capacitors, but the voltage regulator will be less stable.
You can also solder a...
Electric monitor energy viewing local datas through oled display and using remote monitoring with the Node Red's tools and sending datas to internet using IBM cloud and mqtt protocol.
The wemos mini is the heart of this project. The current readings are made with the non invasive current SCT013 30V/1A sensor, then the courrent measured is converted to a digital format using the ADS1115 module. It'...
Some time ago I was searching for a circuit where the **short** push of a button switches on the power to the MCU, and the MCU was able to turn off the power itself.
Because I don't like waiting for the bootloader to power up the MCU to hold the power on.
It's hard to find such a circuit, so I've created this one for educational purposes.
It's similar to the "Mini Pushbutton Power Switch" prod...
Breakout Board for driving WS2812 LED strings from Wemos D1 Mini and External 5VDC Power Supply.
Includes 3.3 -> 5V Level Shifter on D4/GPIO2 for WLED software compatability.
+5VDC and GND are on copper areas to maximize current availability for LED strips
ESP8266 Programmer is a breakout board to upload firmware on ESP8266. It benefits of USB-C connector, the new de-facto standard on the market.
It is designed to be attached to Lolin/Wemos D1 mini shield. If you are not going to use this form factor, you can break the external frame, gaining some mm^2 ([video](https://youtu.be/vi9zZSLOqzo)). Despite the name, it can be also used to program ESP32 an...
The ESP Programmer is the successor of [ESP8266 Programmer](https://easyeda.com/fabiano.riccardi/esp8266-programmer), a board to upload firmware on ESP8266, ESP32, and ESP32-S2. Like the predecessor, it benefits the USB-C connector, but it is improved replacing the CH340 with Silicon Labs CP2104 USB-serial converter (smaller footprint), adding 2 LEDs to show the status of RX and TX line and improv...
# Nettigo Air Monitor - Open Source / Open Hardware
**Czym jest Nettigo Air Monitor?**
NAM to system monitorowania czystości powietrza zbudowany w oparciu o dokładny czujnik NovaFitness SDS011.
Seria 0.3 jest następcą "ruraka" - [Nettigo Air Monitor 0.2](https://easyeda.com/nettigo/Nettigo-Air-Monitor).
Zmontowana płytka mieści się obudowie Kradex Z59JPH. Stawiamy na otwartość dlatego cały kod,...
Power supply expansion shield for the WeMos D1 Mini, which is a microcontroller board based on the ESP8266 module.
2.1mm DC jack and screw terminal connections for power input.
5Vdc output, max 800mA.
7-14Vdc nominal input range, 20Vdc max input.
Input polarity protection.
A Bluetooth serial shield for the WeMos D1 Mini and other compatible boards based on the same header format.
HC-05 master/slave Bluetooth module.
Jumper to link Bluetooth reset to D1 Mini reset.
Jumper to place Bluetooth module into command mode for reflashing, etc.
A general purpose prototyping shield for the WeMos D1 Mini, which is a microcontroller board based on the ESP8266 module.
Outline to match D1 Mini.
Headers with breakouts.
General purpose 0.1" grid for custom parts.