Deja Vu with meter two (Patreon)

Different panel meter module with zap risk

Although this module's design is different to the last one I looked at, it has some pros and cons. Better voltage monitoring circuitry, standard display multiplexing, but poorer electrical separation and no discharge resistor across the dropper cap, which means this module can give you quite a sting when used on its own with no other load to shunt the residual charge. The unit has the facility for calibration across a much smaller range, which gives better accuracy, but in this case was just on the edge of being able to calibrate the voltage. The geeks could fine tune it to their own accuracy with resistor tweaks. Although rated from about 70V to 500V I would say that the electrical separation on the PCB is not ideal for the higher voltages. Make sure you use a ceramic fuse with this module. The main issue is close connector pins and the generously flooded ground plane that goes into the high voltage areas it shouldn't, and increases the risk of tracking and flashover. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- https://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators