Features Footprint for a N-type MOSFET. Footprint for two LEDs with corresponding resistor; one to +Vcc and one to ground. Footprint for a variable resistor. Backside Ground Plane: For less noise emissions and optimal signal strength. Create any circuit based on the 555-timer with this board. The standard layout makes it easy to try out […]

Features Semi-Schematic PCB layout. 4 OpAmps on one PCB. LM324 pinout. Other pinouts than the LM324 possible. Double rail powering. Single rail powering. “Free Style” Area. Pads for pots / trim pots. Backside Ground Plane: For less noise emissions and optimal signal strength. The PCB is based on a IC with 4 opamps build in. […]

Features Up to 4 N-Type MOSFETs. 3V3 MCU direct on/off: With the right MOSFET, only one resistor is needed for controlling it. Default on with pull-up resistor: Hard wire how a high signal shall act. Default off with pull-down resistor: Hard wire how a high signal shall act. 1x V Totem-Pole Switching: For controlling the […]