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f384ce4 · Sep 16, 2017

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hardware

Signpost Hardware

This folder collects all of the core hardware that makes up the signpost platform. For modules made by Lab11, visit the modules folder.

SMBus Addresses

Private bus for controller / power / backplane

Backplane

Thing Part Number Address (bin) Address (hex)
GPIO Extender Mod0 MCP23008 0100000 0x20
GPIO Extender Mod1 MCP23008 0100001 0x21
GPIO Extender Mod2 MCP23008 0100010 0x22
GPIO Extender USB MCP23008 0100011 0x23
GPIO Extender Mod5 MCP23008 0100101 0x25
GPIO Extender Mod6 MCP23008 0100110 0x26
GPIO Extender Mod7 MCP23008 0100111 0x27
EEPROM ID M24C01 1010001 0x51

Power

Thing Part Number Address (bin) Address (hex)
SMBUS Switch 0 PCA9544A 1110000 0x70
SMBUS Switch 1 PCA9544A 1110001 0x71
SMBUS Switch 2 PCA9544A 1110001 0x72
Battery Monitor Addr[000:0FF] MAX17205 0110110 0x36
Battery Monitor Addr[100:17F] MAX17205 0001011 0x0B
Module Coulomb Counter (x8) LTC2943 1100100 0x64
Solar Coulomb Counter LTC2943 1100100 0x64
EEPROM ID M24C01 1010000 0x50

Signpost I2C Network

The shared I2C bus that runs to each module

Controller

Thing Address(es)
Controller 0x20
Storage 0x21

Modules

Thing Address(es)
Radio Module 0x22
Scanner154 Module 0x31
Ambient Sensing Module 0x32
Audio Sensing Module 0x33
Radar Module 0x34
Air Quality Module (UCSD) 0x35