Colibri is a low-cost automation system, primarily intended for building automation, home automation, energy supervision, agriculture supervision and similar systems. Main features beside costs are;

Flexible I/O system, via Expansion Cards in M.2 Key E sockets.
Power supply of 9-36 Volt, either AC or DC (some expansion cards won't work with DC supply)
Colibri-1 using LoraWAN for communications.
Colibri-2 is a full-fledged Raspberry Pi, built with Compute Module 4 (CM4)

Form Factor

Colibri expansion boards are 22x42mm and has an edge connector called M.2 Key E. Many of the pins are following the Key E standard, but Colibri boards have additional requirements, which is not available in the official standard.

WARNING!!! Do NOT plug Colibri expansion boards into other equipment. Do NOT plug any M.2 card into a Colibri system, unless that card/board is specifically made for Colibri.

Planned Boards

Name	Type	Description	Status
Colibri-1	Colibri Host	Minimal Colibri Host with 2 expansion cards. MCU slot is to be populated with Dragino LoRaSt module.	Prototyping on-going
Colibri-2	Colibri Host	Colibri Host with 7 expansion cards, two Ethernet ports, 4 USB ports and SDcard connector.	Ready for prototype
Colibri AIC	I/O Expansion	Two analog 0-20mA inputs	Ready for prototype
Colibri AIV	I/O Expansion	Two analog 0-10V inputs	Ready for prototype
Colibri AQV	I/O Expansion	Two analog 0-10V outputs	Ready for prototype
Colibri DIU	I/O Expansion	Four digital inputs, for state, counter, pulsewidth measurement. On-board STM32F030 for ability to count very fast pulses and high accuracy PWM measurements.	Ready for prototype
Colibri PID1	I/O Expansion	PID regulator, with a PT1000 input and a 0-10V analog output. On-board STM32F030 for host-independent operation.	Ready for prototype
Colibri Pt1000	I/O Expansion	Two PT1000 temperature sensor inputs.	Ready for prototype
Colibri RS485U	I/O Expansion	Two non-isolated RS-485 ports. On-board STM32F030 implementing Modbus protocol, either as master or slave device.	Ready for prototype
Colibri SSR	I/O Expansion	Two Solid State Relays, ON/OFF.	Ready for prototype
Colibri TRIAC1	I/O Expansion	Four Triac outputs, driving 24V AC.	Ready for prototype