2M views · 25K reactions | A simple circuit to measure tank water level with automatic water pump relay contacts #electronic #water #level #auto #control #simplecircuit #pump #tutorial #guide #solution #service | Herman Suhaemi | Facebook

1.5M views · 17K reactions | Super simple LED street motorbike turn signal flasher lights without ICs or transistors but the results are amazingly good IMPORTANT pay attention to the schematic of diode directions number one to eight, match it with the direction of diode number nine #electronic #led #flasher #turn #sein #simple #circuit #running #motorbike #tutorial #guide #solution #service | Herman Suhaemi | Facebook