Banggood

perfect, I like that i2c pins are at the edge of the board.

I soldered together and tested few pieces and works normal and fine as it should. I didn't noticed that board hasn't got FTDI interface so you've got to buy at least one to program those boards. I just modified USB/TTL interface to programm it so it's fine. Otherwise this little guy will do: http://www.banggood.com/FT232RL-FTDI-USB-To-TTL-Serial-Converter-Adapter-Module-For-Arduino-p-917226.html I just ordered 5 of them.

De acordo com as informações do anúncio

I'm very happy with the pro mini. Much smaller than the arduino nano and that space saving makes a big difference in projects where space is at a premium. All 10 checked as working and sketches easily uploaded using a USB to serial cable. The board itself looks very nice as well.

Брал много раз, все работают. Удобно, можно легко перепаять кварц.

all the boards came well packed good quality exactly as described plug and play with ftdi board all good!!!

Looks OK. One piece was tested, found without bootloader. Used Arduino Uno R3 as ISP to burn bootloader (see how-to at: https://www.instructables.com/id/Burn-a-New-Bootloader-Arduino-Pro-Mini/ ). After burning bootloader, workin OK. ATTENTION TO THE SERIAL INTERFACE PINOUT !!! Pins are exactly reversed as "original" Pro Mini - just reverse the connector. Uploading sketches was workin OK, with CH340 3.3 / 5V USB adapter with 6 pins (DTR included).

ottimo rapporto qualità/prezzo

I've tried several versions of the Pro Mini design, but I keep coming back to this particular one. Especially the 5V stabilizer is powerful and keeps a good 5V, regardless of load. All within reason, of course. I had others introducing varying values in the analog circuits, not this one. A little point, left to be desired: all connections on a proper 0,1" grid. The analog inputs 4,5,6 & 7 now don't fit a standard pc board.

Slowest shipping yet, though technically only one day outside the expected delivery time. However, the wrong product was sent. And now the product I actually ordered is out of stock! However, I've rated the product I received with top ratings, because I can't find any reason not to. The product sent, 10xWemos D1 Mini is perfectly functional - just a completely useless "replacement" for the item ordered