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Connecting an Analog Sensor *with* a Pulldown Resistor

MaxFishman edited this page Apr 10, 2025 · 1 revision

Connecting an Analog Sensor with a Pulldown Resistor

For sensors such as LDRs (Light Dependent Resistors) or FSRs (Force Sensitive Resistors) that do require a pulldown resistor:

  1. Connect your power lead to any + (power) via. \

  2. Connect your data lead to your desired analog input via, and make sure to reflect this choice in your code. \

  3. Place your pulldown resistor in the allocated resistor area on the PCB, and make sure it is in the same row as your chosen analog input. This connects the sensor’s data line to ground. The built-in resistor footprint on the PCB makes this easy and clean.

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The code for this circuit can be found in the Seraph Github repository under the name Seraph_FSRDemo

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