STMicro STM32 has popular Cortex-M micro-controller found in the $2 “Blue Pill” board, STMicro’s own Nucleo Board, as well as many other variants. Olavi Kamppari (OliviliK), working on hard real-time control with EmBitz IDE, has created a detailed Wiki for STMicro STM32 on Github with lots of information, including an interesting comparison table of various STM32 Cortex M3 boards (and one GD32 board).
I’ve reproduced the table in his wiki below, made is sortable & filterable, and added links to Aliexpress store found in other parts of the wiki.
| Name | Manufacturer | Price | Processor | Speed MHz | Flash kB | SRAM kB | Package | I/O Pins | SWD | UART | User Button | User LED | Dimensions HxWxL inch | Weight grams | Mount |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HY Tiny | PowerMCU | $3.80 + shipping | STM32F103TBU6 | 72 | 128 | 20 | 36 | 25 | hdr | hdr | PA1 | 0.24x0.84x1.55 | 2 | Breadboard | |
| Blue Pill | VCC-GND | $1.96 | STM32F103C8T6 | 72 | 64 | 20 | 48 | 32 | hdr | PC13 | 0.45x0.89x2.27 | 6 | Breadboard | ||
| Smart V2.0 | Unknown | $3.69 | STM32F103C8T6 | 72 | 64 | 20 | 48 | 33 | JTAG | PA0 | PC13 | 0.45x1.66x2.18 | 13 | Double Breadboard | |
| Demo Board | Unknown | $4.37 | STM32F103C8T6 | 72 | 64 | 20 | 48 | 35 | JTAG | hdr | PC13 | 0.51x1.44x2.90 | 15 | Double Breadboard | |
| ME V5.02 | ME | $5.10 | STM32F103C8T6 | 72 | 64 | 20 | 48 | 35 | JTAG | hdr | PD2 | 0.46x1.78x2.47 | 18 | 4 holes | |
| GD Red Pill | Unknown | $5.10 | GD32F103C8T6 | 72, 96, 108, 120 | 64 | 20 | 48 | 30 | hdr | 0.72x1.00x2.44 | 8 | Breadboard | |||
| BTE14-07 | Baite | $4.00 | STM32F103CBT6 | 72 | 128 | 20 | 48 | 31 | PB8 | PB1 | 0.26x0.73x2.10 | 4 | Breadboard | ||
| LC Tech RB | LC Technology | $9.88 | STM32F103RBT6 | 72 | 128 | 20 | 64 | 51 | JTAG | hdr | 0.47x1.41x2.28 | 15 | |||
| Nucleo-F103RB | STM | $15.32 | STM32F103RBT6 | 72 | 128 | 20 | 64 | 51 | USB | PC13 | PA5 | 0.75x2.75x3.28 | 33 | 3 holes | |
| MiniF103R | Unknown | $12.57 | STM32F103RBT6 | 72 | 128 | 20 | 64 | 51 | JTAG | USB | PC0, PC1 | 0x92x2.67x3.65 | 38 | 4 holes | |
| ME V1.02 | ME | $9.88 | STM32F103RCT6 | 72 | 128 | 20 | 64 | 53 | JTAG | hdr | PD2 | 0.46x1.97x2.76 | 22 | 4 holes | |
| VCC-GND | VCC-GND | $10.72 | STM32F103VCT6 | 72 | 256 | 48 | 100 | 80 | hdr | PB9 | 0x23x1.55x1.95 | 8 | |||
| ME F103/F407 | ME | $12.00 | STM32F103VET6 | 72 | 512 | 64 | 100 | 78 | hdr | hdr | 0.53x2.44x3.73 | 34 | 8 holes | ||
| LC Tech ZE | LC Technology | $12.99 | STM32F103ZET6 | 72 | 512 | 64 | 144 | 112 | JTAG | hdr | 0.47x1.95x2.91 | 26 | 4 holes | ||
| VCC-GND ZE | VCC-GND | $14.72 | STM32F103ZET6 | 72 | 512 | 64 | 144 | 112 | hdr | 0.44x1.86x2.38 | 12 |
You can find much more details about each board in the Wiki.
Thanks to Zoobab for the tip.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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