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embedded-systems

Using a pull-up or pull-down resistor to give an input a defined level

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Requires

Required by

Local knowledge map

Local knowledge map

Reading an analog pin and scaling the code to volts for a named… Using I2C: addresses, pull-ups, scanning and address conflicts Explaining open-drain outputs and sharing one wire between… Reading a button on a digital input with the internal pull-up,… Using a pull-up or pull-down resistor to give an input a… Computing an RC time constant and using the 63% and 5τ rules for… Computing power with P = VI and checking it against a part's… Driving a GPIO pin as a digital output within its current… Finding equivalent resistance, and the current and voltage o… Measuring voltage, current, resistance and continuity safely… Using V = IR to find a missing voltage, current, or resistance Describing current as the flow rate of charge, in… Treating voltage as a difference between two points, measured…

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.