orangecrumble wrote: ↑May 23 2020 5:06pm
the lev coachsmart o-synce looks like a great way of introducing a lot of control for little money. If a device like this could couple ANT+ would scaling back project to just a BLE module like
https://hackaday.io/project/21160-hackable, allow workflow be simplified in the first instance with ability to expand to ANT+ coming later if needed?
There are so many possibilities...
I think the 860C has great display quality but it is expensive for me. And it is locked, can't be used on this project.
I was looking for how to build a cheap wireless display and DIY, and with small size if possible, 3D print enclosure and with battery or power from the ebike battery.
Costs
1. wireless microcontroller board: 12€
2. display 2'' IPS screen, 240×320: 10€
3. 60V to 5V converter module: 2.5€
4. 3D print enclosure and other bits: 5€
TOTAL: 30€
I like to idea to have a relative small, cheap and very flexible display - one that If I burn for some reason, I can easily repair and exchange only the damaged parts.
Wireless microcontroller board
This is always the same board based on NRF52840 microcontroller with BLE and ANT+, 1MBytes flash memory (8x more memory than the SW102). This board can be used to connect to the TSDZ2 motor, for a remote button or display.
The wireless board costs 12€ with the full flexibility for us to implement what we want:
It can be powered from 3.3V up to 5.5V, meaning directly from a lithium battery or 5V. It has also an RTC, meaning while it is powered it will keep the clock time. And this board should be very low power, I think it can be powered from a coin cell, for when building an ANT+ remote button:
Display
There is a 10€, 2'' IPS screen, 240×320 resolution that seems good, not to big and not to small:
https://www.waveshare.com/product/displ ... module.htm
60V to 5V converter
The 60V to 5V converter module is this one, found on ebay:
