Mini 2-wire Volt Meter (2.7 - 40 VDC) Shipping:4-6 Days or with a Lipoly battery

or with a Lipoly battery (for advanced users) can be plugged in

ItsyBitsy M0 Express is only 1

a mere 17mm long

This antenna will allow you to connect your cellular module to the outside world

but you can just as easily use another programming language such as CircuitPython or MakeCode

Mini 2-wire Volt Meter (2.7 - 40 VDC) Shipping:4-6 Days or with a Lipoly batteryPut a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 2 wire version of the volt meter, two wires are used to power it and measure at the same time. We also have a 3 wire version that measures a wider range of voltages . Simply connect the red wire to the positive supply, and black to negative ground. The