They came in the afternoon post, 10 anti-static sealed boards with all hardware (I requested it loose.) The package was rolled interspersed with bubble wrap. I even got a "free gift", 1 elastic disposable, one-wear face mask. Hopefully it was not intended that I put on the mask before I unwrapped the boardsmrburnette wrote: ↑Thu Apr 16, 2020 8:15 pm...
I have placed an order, will test with the IDE basic upload, generic sketches, serial, etc. At this time, I have not read any posts that suggest it will not work with the Arduino IDE using a DFU upload or serially using the built-in bootloader.
I have the same concerns regarding 100% comparability, only testing will tell. ...
I have one of the boards out on the work bench and will solder the headers in a day or two. I pulled out an original "blue pill" that has been used over the years successfully without incident; it has no bootloader, is programmed by a serial-USB using the serial silicon hardware internal to the STM32F103, and will be used as my benchmark device. I tested it today with my blink-n-count sketch, it works correctly with Roger's github core and my 18.3 Linux Mint i7 EliteBook running the current ArduinoIDE.
More in a few days. Nothing too intense, but I plan on testing I2C and SPI with whatever may be on the workbench... likely an ILI934x, a BMP180, etc. I will not make a recommendation on purchase, however, as this is not a STM manufactured uC. At present, I am thinking of a "with sketch" it either passed or failed using Roger's core and ArduinoIDE. I wrote many example sketches early on in the port days while on the Arduino.cc forum; perhaps dust 'em off and run. Do not expect benchmarking.
Added: Seems some effort has been made in this area:
Funny, I did notice that Robodyn has lowered the price again! But, I have read some other forum chatter about increases in outside-China postage rates.
I am continuing this in a new thread: viewtopic.php?f=21&t=441