![]() However, I am not sure how much help that could be since the problem is before the circuit is even applied. If I can find time I will Fritzing a Circuit Diagram for you. Other than using wall warts, this is the first power supply I have ever used. Still, my main problem is that the breadboard power supply is producing inconsistent voltages with my multimeter as the only load. The ESP8266 is running its own core and the Pro Mini is being used as a debugger and programmer as I don't trust connecting the ESP8266 directly to my computer even via an FTDI. Thus a generic part that isn’t any of them. With pullup resistors and LEDS for debugging. AC to 3.3V 700mA Power Supply Part As it happens I have a bunch of these in various voltages, currents and shapes. and a Arduino Pro Mini 5v (5v breadboard rails). The load is a DHT11 connected to an ESP8266 (3.3v breadboard rails). ![]() I don't have a Type A to Type A usb cable which is why I am using the barrel jack. The source is a 5v 2 amp usb cell phone charge hooked up to a OSEEP USB to DC Barrel Jack Connector plugged into a Breadboard PowerSupply ( ) I am not sure if my source is total garbage or if I am doing something wrong! Any ideas on if a bypass capacitor will even help me? I used ohms law to verify my circuits current requirements and I am meeting that with 2 amps. ![]() ![]() The problem I face is that every-time I connect my circuit, the voltage drops to 3v+. I need a steady 5 volts with with a current of 1.2 amps minimum. I am trying to clean up a source signal that has a lot of jitter between 3.7v+ and 5.6v+.
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