Alpha spectrometer proto
Maniak003·AlphaSpectrometr·kicad/alpha-spectrometer-proto/alpha-spectrometer-proto.kicad_pcb
About the Alpha spectrometer proto PCB
Alpha spectrometer proto is an open source STM32 PCB design by Maniak003, published on GitHub. It is a 2-layer board measuring 54.6 × 21.5 mm, with 85 components from 48 distinct parts.
Its main chip is the STM32G473CBTx, from the STM32 family. Other key parts include the AD8061, MCP73831, MCP1700x, LT3045xMSE and LM2733XMF. By type, the board carries 32 capacitors, 22 resistors, 11 connectors, 8 ICs, 6 diodes and 3 inductors.
It belongs with the science & space designs in this gallery.

Main components on the Alpha spectrometer proto
Alpha spectrometer proto bill of materials (BOM)
85 components, 48 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | AD8061 | TSOT-23-5 | U1, U4, U5 |
| 1 | MCP73831 | SOT-23-5 | U3 |
| 1 | MCP1700x | SOT-23 | U6 |
| 1 | LT3045xMSE | MSOP-12-1EP_3x4mm_P0.65mm_EP1.65x2.85mm | U7 |
| 1 | LM2733XMF | SOT-23-5 | U8 |
| 1 | TLV3501AIDBV | SOT-23-6 | U9 |
| 1 | IRLML5203 | SOT-23 | Q1 |
| 1 | 16 | Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | USB_B_Micro | USB_Micro-B_Amphenol_10104110_Horizontal | J1 |
| 5 | Conn_01x01_Female | conn_mini | J2, J3, J20, J21, J22 |
| 1 | BAT+ | SMD-CONN | J4 |
| 1 | BAT- | SMD-CONN | J5 |
| 1 | Anode | Pin_D0.7mm_L6.5mm_W1.8mm_FlatFork | J13 |
| 1 | Catode | Pin_D0.7mm_L6.5mm_W1.8mm_FlatFork | J14 |
| 1 | Conn | SMD-CONN | J19 |
| 1 | SW_Push_SPDT | MySwithc | SW1 |
| 2 | LED | LED_0603_1608Metric | D2, D7 |
| 1 | MBR0540 | D_SOD-123 | D3 |
| 1 | MBR0540LT | D_SOD-123 | D4 |
| 1 | STM32G473CBTx | LQFP-48_7x7mm_P0.5mm | D5 |
Show 28 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH340N | SOP-8_3.9x4.9mm_P1.27mm | D6 |
| 1 | 10uH | L_0805_2012Metric | L3 |
| 1 | 22uH | L_1206_3216Metric_Pad1.42x1.75mm_HandSolder | L4 |
| 1 | 47uH | L_0805_2012Metric | L5 |
| 2 | 1000u | CP_EIA-7132-28_AVX-C | C1, C21 |
| 14 | 10u | C_0603_1608Metric | C2, C6, C7, C16, C23, C24, C25, C26 +6 |
| 1 | 100p | C_0603_1608Metric | C3 |
| 2 | 100n | C_0603_1608Metric | C4, C22 |
| 1 | 4.7p | C_0603_1608Metric | C5 |
| 8 | 10u | C_0805_2012Metric | C12, C13, C14, C17, C19, C29, C35, C36 |
| 1 | 220p | C_0603_1608Metric | C15 |
| 1 | 4.7u | C_0603_1608Metric | C18 |
| 2 | 22u | C_0603_1608Metric | C20, C28 |
| 4 | 10k | R_0603_1608Metric | R1, R4, R10, R12 |
| 1 | 100k | R_0603_1608Metric | R2 |
| 1 | 5.1M | R_0603_1608Metric | R3 |
| 4 | 1k | R_0603_1608Metric | R5, R7, R9, R14 |
| 1 | 2M | R_0603_1608Metric | R6 |
| 1 | 330 | R_0603_1608Metric | R11 |
| 1 | 49.9k | R_0603_1608Metric | R13 |
| 1 | 10 | R_0603_1608Metric | R15 |
| 1 | 117k | R_0603_1608Metric | R16 |
| 1 | 5.1k | R_0603_1608Metric | R17 |
| 1 | 51k | R_0603_1608Metric | R18 |
| 1 | 10M | R_0603_1608Metric | R19 |
| 1 | 50k | R_0603_1608Metric | R20 |
| 2 | 20k | R_0603_1608Metric | R21, R22 |
| 1 | 1.5M | R_0603_1608Metric | R23 |
Alpha spectrometer proto design files
The KiCad project lives in the Maniak003/AlphaSpectrometr repository on GitHub; these links point at the commit this page was built from.
Alpha spectrometer proto: common questions
What microcontroller does the Alpha spectrometer proto use?
The Alpha spectrometer proto is built around the STM32G473CBTx, from the STM32 family.
How big is the Alpha spectrometer proto PCB?
The Alpha spectrometer proto measures 54.6 × 21.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Alpha spectrometer proto?
85 components, from 48 distinct parts. The full bill of materials is listed on this page.
Where can I download the Alpha spectrometer proto design files?
From the Maniak003/AlphaSpectrometr repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Alpha spectrometer proto design in my own project?
The repository has no license, so all rights stay with Maniak003. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Alpha spectrometer proto 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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