Argo

Argo aims to be a complete CM5 breakout system, exposing the most useful functionality (full GPIO access not yet possible due to extremely compact size but ongoing work is being done). It comes with on board battery management and also various connectors for all your project needs. All design files will be fully opensource once devlopment is at a good stage.

NOTE: Reproduction is prohibited until I can test and confirm the board is functional, I wouldnt want people to waste their money :)

The main board houses the CM5 and breaks out the most basic functionality needed.

• 2x 100pin Hirose Connectors
• 2x MIPI-DSI/CSI
• 1x Micro-HDMI
• 1x HDMI FPC connector for external break out
• 1x PCIe FPC connector, Pi 5 compatible
• 2x USB-C (One for power/flashing - USB 2.0 and one regular USB 3.0)
• Integrated BMS (BQ25895) with up to 15W output dependent on battery used.
• I2C control for BQ25895

This is a 6 layer PCB and can be ordered at JLCPCB.

Protype testing:

After testing, a few issues came to light which will be addressed in the next version. Firstly, the PMID boost has a 40ms drop off when unplugging USB charging which causes the pi to shutdown. This will be fixed using an external boost converter. 

The USB-3.0 port also has power issues which will hopefully be fixed as well.