I'm testing a ULN2003 Darlington transistor array (Datasheet Here). simulate this circuit – Schematic created using CircuitLab With GND or 5V input it works fine, but if I unplug an ...
I'm trying to make a simpler approach to flash LPC1114 MCU. If the MCU is reset while pin1.1 is held low it enters bootloader mode. I'm using a simple arduino sketch to drive reset & 1.1 pins via ...
I have very little experience with phototransistors. I'm trying to create a circuit that will effectively function as collision detection. I'm using OPB608A which utilizes an NPN transistor. My goal ...
I was discussing on pull down resistors with a colleague of mine. Here are the two configurations for transistor as a switch. The input signal can either come from a microcontroller or an another ...