Color LCD:Kunteng KT LCD8H VS Bafang 850C
I got the Kunteng KT LCD8H color LCD and here are a picture of the main board:
And a picture of ¨Bafang 850C¨ (http://www.aptdevelop.com) color LCD main board:
The KT LCD is cheaper but also lacks some piece of hardware that is relevant to me: 1. RTC real time clock (although seems the board was development for it, components were not assembled); 2. USB charger. Also, Bafang LCD has 512kb flash memory while Kunteng LCD has half, 256kb.
I can´t understand how a so powerful microcontroller 32 bits 72MHz with 256kb flash memory has a so poor interface, it just replicate LCD3 interface :-( -- seems this companies are just putting fast undeveloped products to market, in this case color LCDs just because seems popular to have a color LCD!!
As for development, the programming/flash/debug header is available the the microcontroller is the same as on Bafang 850C LCD. This are very popular microcontrollers!! very good for development. The big issue is equal to both LCDs, no documentation for which LCD driver is used so until we find out what version is, firmware can simple be developed.
If I had to choose, I would go with Bafang 850C because it has RTC. Also with double of memory, we would be able to implement advanced features for sure.
More pictures and info:
- Bafang 850C: https://github.com/OpenSource-EBike-firmware/Color_LCD/wiki/Bafang-850C
- Kunteng KT-LCD8H: https://github.com/OpenSource-EBike-firmware/Color_LCD/wiki/Kunteng-KT-LCD8H