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Continuing the topic of “How to Use the 29 Yuan Micro:bit Kit”. Last time I briefly summarized the hardware configuration and parameters in the kit (【Notes】How to Use the 29 Yuan Micro:bit Kit – Kit Hardware Introduction).
Today we mainly discuss downloading programs via mobile Bluetooth, which is quite a challenging topic due to various support issues (mobile issues, system issues, and possibly micro:bit version issues, etc.), so I have done a lot of testing.
Mobile Bluetooth Program Downloading (hereinafter referred to as Bluetooth OTA) means writing programs on the mobile phone and then downloading the program to the mainboard via Bluetooth (BLE). From the download time and firmware size, we can initially judge the differences from mpy (MicroPython). It should be similar to Arduino, where the entire firmware is downloaded, while mpy only transmits the py program.
For Apple users: Search for micro:bit in the App Store.
For Android users: Search in the Play Store, or find it in the group files; I uploaded it.
To enter pairing mode, long press A and B, then press reset, until the 25 LED lights are all lit up.
Success may depend on the phone; try a few more times, and if it doesn’t work, try a different phone; if it still doesn’t work, there’s nothing you can do.
Comparing Android and Apple platforms, it may be because Apple has better hardware consistency, and the APP might be officially released, so the success rate is very high.
Two models of the Smartisan phone (Nut Pro 3 and Nut 3) both failed; Nut Pro 3 failed to pair, and Nut 3 failed to download.
A Huawei Honor phone (forgot the old model) could pair and download normally the first time, but then it didn’t work anymore.
The Redmi Note 9 can pair and download normally.
I originally wanted to create an online document to write down the results of my tests, and I will push the article once I finish it.
The main point: The 29 Yuan micro:bit (v1.5) I received can use the mobile IDE to download programs via Bluetooth.
