Estacao de Ignicao (THT) - LoRa 433 MHz
About the Estacao de Ignicao (THT) - LoRa 433 MHz PCB
Estacao de Ignicao (THT) - LoRa 433 MHz is an open source Raspberry Pi PCB design by Serra-Rocketry, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 66 × 64 mm, with 29 components from 23 distinct parts.
Its main chip is the SC0915, from the Raspberry Pi family. Other key parts include the Ra-02 and PC817X2NSZW. By type, the board carries 11 connectors, 7 resistors, 5 diodes, 3 ICs, 2 capacitors and 1 module.
It belongs with the rf & radio and power & battery designs in this gallery.
From the project
[Propulsion] Remote ignition system for rocket motors.
O sistema possui duas estacoes independentes conectadas por LoRa 433 MHz:
- Estacao de Comando: operada pelo usuario em area segura. - Estacao de Ignicao: fica proxima ao foguete e aciona o ignitor.
Pinagem da pcbignicaosmd` (footprint DIP-38):
1. Comando envia ARMCONFIRMED enquanto o botao e mantido. 2. Ignicao confirma com ACK e inicia contagem de 5 s. 3. Se houver ABORT ou perda de sinal > 500 ms, ciclo e cancelado. 4. Ao final da contagem, saida de ignicao ativa por 2 s. 5. Ignicao envia IGNITIONCOMPLETE.
Main components on the Estacao de Ignicao (THT) - LoRa 433 MHz
Estacao de Ignicao (THT) - LoRa 433 MHz bill of materials (BOM)
29 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Ra-02 Ai-Thinker | RA-02_THT | U1 |
| 2 | PC817X2NSZW DIP-4_W7.62mm_LongPads Sharp | DIP-4_W7.62mm_LongPads | U2, U3 |
| 1 | SC0915 Raspberry_Pi_Pico_THT Raspberry Pi | raspberry_pi_pico_THT | A1 |
| 1 | PRPC001SAAN-RC +buzzer Sullins | PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | PRPC001SAAN-RC -buzzer Sullins | PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | PRPC001SAAN-RC NO Sullins | PinHeader_1x01_P2.54mm_Vertical | J5 |
| 1 | PRPC001SAAN-RC COM Sullins | PinHeader_1x01_P2.54mm_Vertical | J6 |
| 1 | PRPC002SAAN-RC EXT_PWR Sullins | PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | PRPC003SAAN-RC RELE Sullins | PinHeader_1x03_P2.54mm_Vertical | J8 |
| 1 | PRPC002SAAN-RC LED_BTN Sullins | PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | PZ254V-11-02P PinHeader_1x02_P2.54mm_Vertical XFCN | PinHeader_1x02_P2.54mm_Vertical | J10 |
| 2 | PZ254V-11-04P PinHeader_1x04_P2.54mm_Vertical XFCN | PinHeader_1x04_P2.54mm_Vertical | J11, J13 |
| 1 | PZ254V-11-08P PinHeader_1x08_P2.54mm_Vertical XFCN | PinHeader_1x08_P2.54mm_Vertical | J12 |
| 1 | L-53YD LED_Y Kingbright | LED_D5.0mm | D1 |
| 1 | L-53SRD LED_R Kingbright | LED_D5.0mm | D2 |
| 1 | 1N5819 Diotec | D_DO-41_SOD81_P10.16mm_Horizontal | D3 |
| 1 | 1N4148TR D_DO-35_SOD27_P7.62mm_Horizontal YANGJIE | D_DO-35_SOD27_P7.62mm_Horizontal | D4 |
| 1 | 1N4007 D_DO-41_SOD81_P10.16mm_Horizontal YANGJIE | D_DO-41_SOD81_P10.16mm_Horizontal | D5 |
| 1 | K104K15X7RF5TH5 100nF Vishay | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1 |
| 1 | UVR1E100MDD 10uF Nichicon | CP_Radial_D5.0mm_P2.50mm | C2 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | CFR-25JB-52-330R 330 Yageo | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3 |
| 1 | MFR-25FTE52-1K R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 3 | CFR-25JB-52-10K R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6, R7 |
Estacao de Ignicao (THT) - LoRa 433 MHz design files
The KiCad project lives in the Serra-Rocketry/ignitor repository on GitHub; these links point at the commit this page was built from.
Estacao de Ignicao (THT) - LoRa 433 MHz: common questions
What microcontroller does the Estacao de Ignicao (THT) - LoRa 433 MHz use?
The Estacao de Ignicao (THT) - LoRa 433 MHz is built around the SC0915, from the Raspberry Pi family.
How big is the Estacao de Ignicao (THT) - LoRa 433 MHz PCB?
The Estacao de Ignicao (THT) - LoRa 433 MHz measures 66 × 64 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Estacao de Ignicao (THT) - LoRa 433 MHz?
29 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Estacao de Ignicao (THT) - LoRa 433 MHz design files?
From the Serra-Rocketry/ignitor repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Estacao de Ignicao (THT) - LoRa 433 MHz design in my own project?
Yes, under the terms of its GPL-3.0 license, which Serra-Rocketry chose for the repository.
Can I test firmware for the Estacao de Ignicao (THT) - LoRa 433 MHz without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.
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