yannpom
1 µW
Hello,
Some context:
I've been looking at this forum for some time but I finally registered and this is my first post.
I've build 4 electric vehicules using the Phaserunner + throttle only and I was feeling the need for a display / interface. I could have used a CycleAnalyst but as there was a RS232 port (TRRS as they call it) on the Phaserunner, I started fiddling with it. After 2 custom PCB designs and a bit of software (firmware + iOS app), here is what I got:
The DIY adapter board:
List of currently developped features:
List of possible features:
I've prototyped this over a week last July and it has been working great since. I would be pleased to answer questions and gather feedback. And we never know, maybe a bunch or people will be interested in producing a first batch.
Some context:
I've been looking at this forum for some time but I finally registered and this is my first post.
I've build 4 electric vehicules using the Phaserunner + throttle only and I was feeling the need for a display / interface. I could have used a CycleAnalyst but as there was a RS232 port (TRRS as they call it) on the Phaserunner, I started fiddling with it. After 2 custom PCB designs and a bit of software (firmware + iOS app), here is what I got:
The DIY adapter board:
- The adapter is a custom made PCB
- Size is 22x56mm
- RS232 (TRRS) port: connected to and powered by the Phaserunner.
- GPS
- USB-C port
- Not just a dumb BLE bridge: it has his custom firmware + flash storage.
List of currently developped features:
- Live data / dashboard at 10Hz (using BLE notifications which are more energy efficient for the phone)
- Global meters, trip meter, meter that autoreset on battery charge. They cumulate over time: distance, moving time, Wh, Ah. And they work even when the phone is disconnected (values stored in the adapter flash)
- 20h of rolling logging data (in the module flash). Automatically synced to the phone when connected.
- GPS data included in the logs
- In the app: a tap on the speedometer unlocks speed limitation. I really love that one. I can respect the 25km/h limit in cities, then unlock to get the full speed in the countryside.
List of possible features:
- Using the phone inclinometer to automatically adjust power assistance levels as you go up and down hills (idea from Justin)
- "One pedal driving", like in a Tesla, the throttle mapping can be dynamically changed based on the speed (and why not the slope) to act as both a throttle and a brake with only 1 throttle. (This works because the Phaserunner parameters can be live edited at high speed, without being saved to flash)
- 1 click export button to post a trip online (GPS + logged data). No more need for a USB cable or SD Card reader. You can even post your trip while pedaling. It could even be live uploaded to that anyone can follow a traveller live.
- USB-C port could be used to connect to Phaserunner suite, replacing the need for the TRRS cable.
- And many more...
I've prototyped this over a week last July and it has been working great since. I would be pleased to answer questions and gather feedback. And we never know, maybe a bunch or people will be interested in producing a first batch.