In our application, especially in some outdoor applications, we often need to use the lithium battery, lithium battery charging problem is a need to solve the problem, we designed this mini lithium battery charging board.
Board size is very small , It can u
he level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV' pin, low voltage (3.3V for example) to ‘LV', and ground from the system to the ‘GND' pin.
a WiFi wireless switch that can connect to appliance of different types and brands. Sonoff sends data to cloud platform through the WiFi Router, which enables you to remotely control all appliances with the App eWeLink on your smart phone.
Did we mention it's an ESP8266 on board ? that means you can reprogram it yourself and make your own firmware with a...
The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE the Digispark is a great way to jump into electronics, or perfect for when an Arduino is too big or too...
This is a light weight, high energy density polymer lithium battery. It outputs a nominal 3.7v at 980mAh, including built-in protection against over voltage, over current, and minimum voltage. It comes terminated with a standard 2-pin JST connector-2.54 mm spacing between pins.
Please do not attempt to charge these with anything but a specialized...
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