This repository contains a set of boards that can interface the Smart Citizen Kit in different ways.
See the docs at: https://docs.smartcitizen.me/hardware/boards/analog-sensor-board/
The SmartCitizen ASB is an expansion board for the Smart Citizen Kit that provides connectivity to analog sensors with a high precission ADS1115 via I2C, with four configurable addresses. Daisy chainable up to 4 boards (or 2 in 8ch version) - with a total of 16 analog channels.
| Variant | # of Channels | External AREF needed | ADS format |
|---|---|---|---|
| 4-channel | 4 | Y | SMD or shield by adafruit |
| 8-channel-step | 8 | N | SMD |
Natively operates at 3.3V, but can use also up to 5.5V in EXT-V, and with a selectable jumper. It integrates a level-shifter from the GROVE connector's voltage to EXT-V.
I2C, from 3.3V up to 5.5V.