This PCB provides mounting space for a MeetJeStad device and allows it to be powered from mains (230VAC) with battery backup.. It also provides additional connectors for the Nova SDS011 PM2.5/PM10 particulate and ASAIR AM2305 tempature/humidity sensors.
The pcb is developed by The Things Network Apeldoorn community for the 'Hitte Markstraat' project commissioned by the Dutch Apeldoorn municipality and is primarily a single layer through-hole design to make the assembly easy; pcb etching as well as soldering.
WARNING: This pcb carries mains 230V AC which is potentially deadly! Do not work on this board with mains power connected!
Below is a list of primary components for this design:
- Housing: Bopla M-237-V0
- MeetJeStad node v2
- Power regulation and battery charger: Adafruit PowerBoost 500c
- Battery backup: 1200mA LiPo 3.7V pouch
- AC/DC Power converter: MeanWell IRM-03-05
In the schematic each component has an OC_xxx attribute with an product number for a supplier, mainly Farnell for the passives, connectors and other small components.