TrackModBusMaster piggyback
About the TrackModBusMaster piggyback PCB
TrackModBusMaster piggyback is an open source PIC PCB design by jeremysiebers, published on GitHub. It is a 2-layer board measuring 40 × 77 mm, with 65 components from 42 distinct parts.
Its main chip is the PIC16F15345-I_GZ-MCU_MICROCHIP_PIC16_UQFN_20_4X4, from the PIC family. Other key parts include the MCP73871-2AA_VQFN_20_4X4, MCP1725-ADJE_MC_DFN-8-REGULATOR_LINEAR, ST485EBDR and PIC18F25K40. By type, the board carries 28 resistors, 20 capacitors, 6 ICs, 5 connectors, 5 diodes and 1 transistor.
From the project
Siebwalde project
This project is dedicated for the ModelTrain Yard of Siebwalde: - https://www.youtube.com/c/SiebersOrg - http://www.siebers.org/index.html - https://www.youtube.com/channel/UCRJYaY8l7wVBrel3Bn0nD2Q/videos?view_as=subscriber
- Siebwalde_Application --> C# main App to control all
- FiddleYard --> Embedded ethernet uController, controlling the FiddleYard PIC18F97j60
Main components on the TrackModBusMaster piggyback
TrackModBusMaster piggyback bill of materials (BOM)
65 components, 42 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PIC16F15345-I_GZ-MCU_MICROCHIP_PIC16_UQFN_20_4X4 ST485EBDR | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | MCP73871-2AA_VQFN_20_4X4 ST485EBDR | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MCP1725-ADJE_MC_DFN-8-REGULATOR_LINEAR ST485EBDR | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 2 | ST485EBDR | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 1 | PIC18F25K40 | SOIC-28W_7.5x17.9mm_P1.27mm | U6 |
| 1 | NTR5103NT1G | SOT-23 | Q1 |
| 2 | Conn_02x08_Top_Bottom | PinHeader_2x08_P2.54mm_Vertical | J1, J3 |
| 1 | Conn_02x05_Odd_Even | IDC-Header_2x05_P2.54mm_Vertical | J2 |
| 2 | Conn_01x08 | PinHeader_1x08_P2.54mm_Vertical | J4, J5 |
| 1 | SMAJ5.0A/AC LED GR | LED_0.8x0.8 | D1 |
| 1 | LED YE | LED_0.8x0.8 | D2 |
| 1 | LED RD | LED_0.8x0.8 | D3 |
| 2 | LED GR | LED_0.8x0.8 | D4, D5 |
| 2 | 0.1UF 4.7u | C_1206_3216Metric | C1, C2 |
| 1 | 4.7UF 4.7u | C_1206_3216Metric | C3 |
| 1 | 10UF 100n | C_1206_3216Metric | C4 |
| 3 | 4.7UF 100n | C_1206_3216Metric | C5, C6, C7 |
| 4 | 4.7u | C_1206_3216Metric | C8, C9, C12, C18 |
| 4 | 100n | C_1206_3216Metric | C10, C11, C13, C20 |
| 4 | 22p | C_1206_3216Metric | C14, C15, C16, C17 |
Show 22 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 220u | CP_Radial_D6.3mm_P2.50mm | C19 |
| 3 | 4.7K 0E | R_1206_3216Metric | R1, R2, R3 |
| 1 | 18K 1k | R_1206_3216Metric | R4 |
| 1 | 200 4k99 | R_1206_3216Metric | R5 |
| 1 | 200 10k | R_1206_3216Metric | R6 |
| 1 | 220K 1k | R_1206_3216Metric | R7 |
| 1 | 10K 60E | R_1206_3216Metric | R8 |
| 1 | 4.7K 1k | R_1206_3216Metric | R9 |
| 1 | 47K 0E | R_1206_3216Metric | R10 |
| 1 | 22K 0E | R_1206_3216Metric | R11 |
| 1 | 470 4k99 | R_1206_3216Metric | R12 |
| 1 | 470 0E | R_1206_3216Metric | R13 |
| 1 | 470 300E | R_1206_3216Metric | R14 |
| 1 | 4.7K 300E | R_1206_3216Metric | R15 |
| 3 | 150 300E | R_1206_3216Metric | R16, R17, R18 |
| 3 | 150 4k99 | R_1206_3216Metric | R19, R20, R21 |
| 1 | 150 110k | R_1206_3216Metric | R22 |
| 1 | 150 10k | R_1206_3216Metric | R23 |
| 2 | 150 470E | R_1206_3216Metric | R24, R25 |
| 1 | 4k99 | R_1206_3216Metric | R26 |
| 1 | 60E | R_1206_3216Metric | R27 |
| 1 | NP | R_0603_1608Metric | R28 |
TrackModBusMaster piggyback design files
The KiCad project lives in the jeremysiebers/Siebwalde repository on GitHub; these links point at the commit this page was built from.
TrackModBusMaster piggyback: common questions
What microcontroller does the TrackModBusMaster piggyback use?
The TrackModBusMaster piggyback is built around the PIC16F15345-I_GZ-MCU_MICROCHIP_PIC16_UQFN_20_4X4, from the PIC family.
How big is the TrackModBusMaster piggyback PCB?
The TrackModBusMaster piggyback measures 40 × 77 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TrackModBusMaster piggyback?
65 components, from 42 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 TrackModBusMaster piggyback design files?
From the jeremysiebers/Siebwalde repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the TrackModBusMaster piggyback design in my own project?
The repository has no license, so all rights stay with jeremysiebers. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the TrackModBusMaster piggyback without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug PIC firmware against it before you order a PCB.
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