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Devices & Hardware
samuk edited this page Apr 10, 2020
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| Device | CE/ FCC | Power consumption | Support | Note | cost |
|---|---|---|---|---|---|
| TTGOv2 | No | 105mA (Bluetooth) | Supported | Available pre-flashed | ~$17 |
| TTGO Tbeam V07 | No | ~150mA? | Supported | compile with pio run -e ttgo-lora32-tbeam
|
~$24 |
| TTGO Tbeam V10 | No | ~150mA? | Experimental | May require enabling GPS chip, see #33 (comment) | ~$24 |
| Disaster Radio v5 | No | ~100mA | Todo | Open Source board in development | ~$20? |
| 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 | ~140mA | 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 | ~100mA | Experimental | Poor performance, short range, compile with pio run -e heltec-v2
|
~$9 |
| TTGO V1 | No | ~100mA | Experimental | Poor performance, short range, compile with pio run -e ttgo-lora32-v1
|
~$9 |
A user has drafted a list of parts for a solar-powered system here to be used with this controller,
- Solar systems are very context-dependent. This system is designed on these assumptions: The device is using BLE rather than Wifi, it is clocked at 80Mhz. There is at least one hour of sunlight at the midwinter.
- If you get more than one hour of sunlight in winter you could try a smaller panel or battery bank. If you get less than one hour of sunlight then you need a larger panel and battery bank.
- Where there is at least one hour of sunlight a day year-round; A 20w panel and 4 x 1600mA batteries are probably adequate.
- Ensure that your panel comes with a built-in Schottky diode, or add one to the circuit yourself
- Xorbit will solder screw terminals to the solar controller on request for a couple of dollars
- For panels up to ~37w the 2.1A solar controller will work
- Ask for the Thermistor to be included with the charge controller
- If it falls below freezing in your climate add heating pads to the batteries
- You only need two core cable for the solar panel,
- Plastic solar panels typically degrade and fail faster than glass panels
- There is a bit of documentation on how to put the solar system together here
- Work is also being done on a custom controller