MAPIO hardware is based on multiple electronic boards to facilitate repair. It is based on a Raspberry Pi Compute Module 4, adding integrated circuits and connectors to enhance features.
PCB1 is mandatory, and provide the following functions :
- Socket for Raspberry Pi Compute Module 4 (eMMC variants only)
- Slot for an M.2 SSD (2242 or 2280)
- Ethernet 1Gbps
- 1x USB-C 2.0
- 1x USB-A 2.0
- Internal USB-C connector for debug purposes
- Optocoupled UART input for TIC (Linky)
- RS485 10 Mbps transceiver
- 250V 10A relay
- 5V Fan connector
- Jumpers for power supply selection
- Jumpers for Wifi/BLE/BOOT configuration
PCB2 is optional, but delivers the full potential of MAPIO :
- A 18650 backup battery, providing several hours of autonomy in case of power loss
- 3 slots for (optional) RF modules
- 2.13" black and white ePaper
- 3 RGB LEDs
- 3 buttons
- 3V3 DC-DC converter
MAPIO has been designed to be installed on DIN rail. The case is a customized version of Bud DMB-4773.
You need to have at least 6 free spaces (108 mm) on your switchboard for MAPIO, plus space for AC-DC power supply. 9 free spaces are recommended.
MAPIO has to be powered by a 5V DC, 2A power supply. The power input connector is on the upper left side of the casing.
You need to use the provided Wurth 691361100002 connector.
Connect the output of the AC-DC converter (for example, Mean Well HDR-15-5) to J1001 connector.
Note : the use of a 2A circuit breaker upstream of the AC-DC converter is highly recommended.
The main board has several configurations available. These configurations can be set by putting jumpers on the board headers.
Header | Function |
---|---|
P104 | Compute Module Configuration |
P901 | RS485 120R Configuration |
P1003 | 5V Configuration |
P1005 | 3V3 Configuration |