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Devices & Hardware
samuk edited this page Feb 13, 2020
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| Device | CE/ FCC | Power consumption | Support | Note | cost |
|---|---|---|---|---|---|
| TTGOv2 | No | 105mA (Bluetooth) | Supported | Available pre-flashed | ~$17 |
| Disaster Radio v5 | No | ? | Todo | Open Source board in development | ~$30? |
| Lopy4 | Yes | ~70mA (Bluetooth) | Todo | should be good for infrastructure | ~$50 |
| Sparkfun 1 channel gateway | No | ~70mA (Bluetooth) | Experimental | Edit this | ~$35 |
| M5 stack & Ra-01H | Yes | ? | Todo | Only the Ra-01H module will work, take care to buy this version, at the correct frequency for your country | ~$35 + ~$18 |
| Heltec V2 | No | ? | Experimental | Poor performance, short range Edit this before compile | ~$9 |
| TTGO V1 | No | ? | Experimental | Poor performance, short range Edit this before compile | ~$9 |
| TTGO Tbeam | No | ? | Experimental | No GPS support yet Edit this before compile | ~$24 |
A user has drafted a list of parts for a solar-powered system here to be used with this controller, a 20w panel and 4 x 1600mA batteries are probably good for latitude ~50, for higher latitude consider a larger panel. this system is in the early stages of testing, proceed at your own risk.
Work is also being done on a custom controller
All are initial estimations, probably missing a component or two and haven't scoured for bulk prices on everything:
- ESP8266 - $2.50
- LoRa Transceiver - HackRF RFM95W - $7 OR Dorji DRF1276G - $6
- Custom PCB - ~180x120, 4 layer, 100ct - $6.50
- 900MHz Omni-directional Antenna 5dBi - $3
- Solar Panel - 6V, 3W, 120mAH - another option - $5-6
- LiOn Battery - 3.7V 3600mAh - $4 OR
- LTO battery? - NEED TO RESEARCH COSTS
- Battery charging circuit: CN3791 + passive components - $1.50
- 3.3V buck converter - $5
- Enclosure - ~$5
Total: ~$40