Review on 💡 Packed Power: PEMENOL 5PCS AMS1117-3.3V Buck Converter – Efficient 3.3V Step-Down Voltage Regulator for Stable Power Supply (800mA) by Eugene Cox

I ordered these DC to DC buck converters to help with intermittent 3.3VDC power needs. I've developed projects that used ESP8266 modules, OLED displays, and some Arduino touch devices like accelerometers, magnetometers, etc. DC Arduino Pro. Mini. When I say simple solution; You're only dealing with three pins; Vin, Wout and Gnd. The specs say you can use a 4.75 to 12V DC Vin power supply with a source current of up to 800mA. When I received the devices, they were all connected to the same band. Take your time and be careful breaking or disconnecting each device! To do a quick test I used a general purpose breadboard with an Arduino UNO and a Raspi Pi 3. I connected the Vin pin to the UNO 5vdc pin. ; Vout is connected to my digital sight and Gnd to the UNO Gnd pin. The input of the UNO was 5.02 VDC, the Vout of the buck converter was 3.266 VDC. Works perfectly! For the money this is a quick and easy 3.3 volt solution!