Review on π Buck Boost Power Supply Module USB Voltmeter Tester: 5V Multi-Function Meter with LCD Voltmeter, Ammeter, Battery Capacity Tester, Power Tester, Temperature Display, and PWM Generator by Vincent Lott
It works but there is no guide
You should take a screenshot of the product guide and save it somewhere as there is no guide for it. I didn't know I had to collect it. It is in order. Next time I should pay attention to all the photos, because in one of the photos the thing is completely disassembled. It's easy to assemble. I connected to the output in a buck & boost configuration with a 1K resistor. I had 5v input and 20v output to test boost mode. I had 20V input and 5V output to test buck mode. I was hoping I could set it to constant current (CC) mode but couldn't get it to work. According to the specs, isn't it DC? I'll check it out later. At least it works as advertised. I would give 5 stars if it came with good instructions.
- VAH modes
- Everything is OK
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