STM32F103 iot
About the STM32F103 iot PCB
STM32F103 iot is an open source STM32 PCB design by R-Mutura, published on GitHub. It is a 2-layer board measuring 50 × 67.5 mm, with 82 components from 52 distinct parts.
Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the LM1117-3.3, BQ24167RGE, LM741 and RFM97W-915S2. By type, the board carries 29 capacitors, 23 resistors, 11 connectors, 6 ICs, 6 diodes and 2 crystals.
It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.
Main components on the STM32F103 iot
STM32F103 iot bill of materials (BOM)
82 components, 52 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F103C8Tx | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | LM1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | BQ24167RGE | Texas_RGE0024H_EP2.7x2.7mm_ThermalVias | U3 |
| 2 | LM741 | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 1 | RFM97W-915S2 | HOPERF_RFM9XW_SMD | U6 |
| 1 | IRF5305 | TO-263-2 | Q1 |
| 1 | 8MHz | Crystal_SMD_HC49-SD | Y1 |
| 1 | Crystal_GND24_Small | Crystal_SMD_SeikoEpson_MA406-4Pin_11.7x4.0mm | Y2 |
| 1 | USB_B_Micro | USB_Micro-B_Molex_47346-0001 | J1 |
| 1 | Barrel_Jack_Switch | BarrelJack_Horizontal | J2 |
| 1 | USB_charge_selector | PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left | J3 |
| 1 | Micro_SD_Card_Det_Hirose_DM3AT | microSD_HC_Hirose_DM3D-SF | J4 |
| 1 | Battery_connector | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | STLINK_CONN | PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | Conn_01x10_Male | PinHeader_1x10_P2.54mm_Vertical | J7 |
| 1 | TFT SCREEN CONN | Molex_KK-254_AE-6410-08A_1x08_P2.54mm_Vertical | J8 |
| 1 | DIO5 | PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left | J9 |
| 1 | DIO3 | PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left | J10 |
| 1 | DIO4 | PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left | J11 |
| 1 | Antenna | U.FL_Hirose_U.FL-R-SMT-1_Vertical | AE1 |
Show 32 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SW_Push | SW_SPST_B3U-1000P-B | SW1 |
| 1 | SW_Push | SW_SPST_B3U-1000P | SW2 |
| 1 | 1N5817 | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | STATUS_OK | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 1 | CHARGING_ON | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5 |
| 1 | 1N5817 | D_0603_1608Metric | D6 |
| 1 | Battery_full | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7 |
| 1 | Charge_Battery | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D8 |
| 1 | L | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 2 | 22pF | C_0603_1608Metric | C1, C2 |
| 2 | 10pF | C_0603_1608Metric | C3, C4 |
| 5 | 0.1uF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5, C9, C13, C14, C27 |
| 2 | 0.1uF | C_0603_1608Metric | C6, C8 |
| 3 | 10uF | C_0805_2012Metric | C7, C12, C15 |
| 3 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C23, C28 |
| 1 | 0.1uF | C_0402_1005Metric | C11 |
| 4 | 1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16, C19, C24, C26 |
| 1 | 10uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C17 |
| 2 | 4.7uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C18, C20 |
| 1 | 0.01uF(16V) | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C21 |
| 1 | 47uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C22 |
| 1 | 0.01uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C25 |
| 1 | C | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C29 |
| 14 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R7, R8, R10 +6 |
| 1 | 25k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 180 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9 |
| 1 | 350 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14 |
| 1 | 0 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15 |
| 1 | 3.7k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16 |
| 1 | 2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20 |
| 1 | 4k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21 |
| 2 | 1k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R23, R24 |
STM32F103 iot design files
The KiCad project lives in the R-Mutura/STM32F103_iot repository on GitHub; these links point at the commit this page was built from.
STM32F103 iot: common questions
What microcontroller does the STM32F103 iot use?
The STM32F103 iot is built around the STM32F103C8Tx, from the STM32 family.
How big is the STM32F103 iot PCB?
The STM32F103 iot measures 50 × 67.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the STM32F103 iot?
82 components, from 52 distinct parts. The full bill of materials is listed on this page.
Where can I download the STM32F103 iot design files?
From the R-Mutura/STM32F103_iot repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the STM32F103 iot design in my own project?
The repository has no license, so all rights stay with R-Mutura. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the STM32F103 iot without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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