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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Mark_M
So, that is great!, the issue with AGPS is resolved. ( Unless we want to dig deeper trying to load the "big" file from here https://api.smawatch.cn/epo/202201/. I've looked into the file, its data structure is not clear. )
@fanoush - your first item is covered.
Yes I saw Gordon has announced this app. I've just looked into the code. It pushes the file content to Serial. When I tried to do this similarly, manually loading the bin file to storage and then just read it into Uint8Array and pushed the buffer to Serial as a whole, the Serial chocked with FIFO error after couple of messages. CASIC doc tells not to push next message before ACK message is received. I've done it this way in my experimental code, that parses the content and pushes messages one by one. It works ok, though some messages fail with NACK. But at least it does not chock.
The only problem is - how to download the file. Gordon mentioned some Android Bangle Assistant/Companion app. May be this could help? Is there another way to get the file over BLE?