Shared Projects by CedarGrove

The AD5293 Digital Potentiometer is an SPI, 100K-ohm device. The potentiometer sports 1024 resistance steps. The digital logic power requires 2.7v to 5.5v. The potentiometer circuit operates with dual analog supply voltages from +/-9v to +/-16.5v. The pins act similarly to a passive resistive potentiometer, but require that voltages placed on any of the three pins not exceed the analog power supply voltages.

The Cedar Grove AD5293 custom breakout board provides power and signal connections for SPI and the potentiometer chip. The AD5293 is also used in the AD9833-based Cedar Grove Precision VCO Eurorack module. A CircuitPython driver is available: https://github.com/CedarGroveStudios/CircuitPython_AD5293

NAU7802 24-bit ADC FeatherWing DIP Package Version: A dual load cell precision analog-to-digital converter FeatherWing with optional STEMMA-QT connectors.

PCB design repository: https://github.com/CedarGroveStudios/NAU7802_FeatherWing_PCB

A CircuitPython driver can be found in the Community Bundle and in this repo: https://github.com/CedarGroveStudios/CircuitPython_NAU7802

NAU7802 24-bit ADC FeatherWing: A dual load cell precision analog-to-digital converter FeatherWing with optional STEMMA-QT connectors.

PCB design repository: https://github.com/CedarGroveStudios/NAU7802_FeatherWing_PCB

A CircuitPython driver can be found in the Community Bundle and in this repo: https://github.com/CedarGroveStudios/CircuitPython_NAU7802

STEMMA_MPU_Backpack. A simple “basement” backpack to add a Stemma or Stemma-QT connector to any Feather MPU or FeatherWing. The backpack simply connects the default I2C pins to the Stemma JST (SH or PH) pads. The backpack PCB is designed to be attached to the bottom side of a Feather by soldering the 3V3, GND, SDA, SCL, and RESET (for mechanical strength) holes to the Feather’s existing, presoldered pins.

Cedar Grove Robot Friend (v04): A passive FeatherWing adapter for stacking an Adafruit PyBadge or PyGamer with a Crickit FeatherWing. Includes a prototyping area for custom circuitry and sensors.