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3V regulator USB Interface Onboard USB-to-serial (programming) GPIO All ESP-12E GPIOs exposed Controls Reset button
you need to install the Arduino software on your computer and connect the board to your computer using a USB cable
Only problem is that they are only good in one direction which can be a problem for some specialty bi-directional interfaces and also makes wiring a little hairy
and durable
Category: button switch
3xAA Battery Holder w/ Switch - 4.5V Output Lead pro mini 3V regulator USB Interface OnboardBattery Holder 3AA with switch The Battery Holder 3AA with switch holds batteries and provides a convenient Wire leads + switch output for connecting to your project. Pair with AA or AAA batteries (rechargeable NiMH recommended for motor projects). Technical specifications Output Voltage 4. 5V (3AA) Cells 3 Output Wire leads + switch
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