RHS 3
About the RHS 3 PCB
RHS 3 is an open source AVR/Arduino PCB design by pa-pa, published on GitHub. It is a 2-layer board measuring 51 × 61 mm, with 66 components from 37 distinct parts.
Its main chip is the ATMEGA328P-A, from the AVR/Arduino family. Other key parts include the CC1101, CC1101_CHIP and TLE4913. By type, the board carries 29 capacitors, 10 resistors, 6 ICs, 6 connectors, 6 inductors and 2 transistors.
Main components on the RHS 3
RHS 3 bill of materials (BOM)
66 components, 37 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA328P-A | TQFP-32_7x7mm_P0.8mm | IC1 |
| 1 | CC1101 | CC1101_Module | IC2 |
| 1 | CC1101_CHIP CC1101_Chip | QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | IC3 |
| 3 | TLE4913 | SOT-23 | U1, U2, U3 |
| 2 | SI2305CDS Si2305CDS | SOT-23 | Q1, Q2 |
| 1 | C91747 Resonator | Oscillator_SMD_EuroQuartz_XO32-4Pin_3.2x2.5mm | X1 |
| 1 | Crystal_Small | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | Glass Breakage Detector | JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal | J1 |
| 1 | ANT | Pin_D1.0mm_L10.0mm | J2 |
| 1 | ISP Bottom | ISP_Side | P4 |
| 1 | ISP Top | ISP_Side | P5 |
| 1 | FTDI | PinHeader_1x06_P2.54mm_Vertical | P6 |
| 1 | ISP 10 | PinHeader_2x05_P2.54mm_Vertical | P7 |
| 1 | Battery | CR2477_Surface_Mount | BT1 |
| 1 | Reset | MicroSwitch_3x4 | SW1 |
| 1 | Config | MicroSwitch_3x4 | SW2 |
| 1 | C84256 LED Red | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | C2297 LED Green | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 4 | 12NH 12nH | L_0402_1005Metric | L1, L2, L5, L6 |
| 2 | 18NH 18nH | L_0402_1005Metric | L3, L4 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 100N 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3, C7 |
| 3 | 10N 10n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C5, C6 |
| 4 | 10P 10p | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8, C9, C10, C13 |
| 2 | 9p | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C11, C12 |
| 1 | 330µ | CP_Elec_6.3x5.8 | C14 |
| 1 | 4U7 4u7 | C_0402_1005Metric | C15 |
| 7 | 100N 100n | C_0402_1005Metric | C16, C17, C18, C19, C20, C21, C22 |
| 1 | 12P 12p | C_0402_1005Metric | C23 |
| 1 | 15P 15p | C_0402_1005Metric | C24 |
| 2 | 1P5 1p5 | C_0402_1005Metric | C25, C28 |
| 1 | 1p | C_0402_1005Metric | C26 |
| 1 | 100P 100p | C_0402_1005Metric | C27 |
| 1 | 3P3 3p3 | C_0402_1005Metric | C29 |
| 3 | 10K 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R9, R10 |
| 2 | 1K5 1k5 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3 |
| 4 | 1M | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R5, R6, R7 |
| 1 | 56K 56k | R_0402_1005Metric | R8 |
RHS 3 design files
The KiCad project lives in the pa-pa/HB-Sec-RHS-3 repository on GitHub; these links point at the commit this page was built from.
- LayoutRHS_3.kicad_pcb
- BOMgerber/BOM_RHS_3.xlsx
RHS 3: common questions
What microcontroller does the RHS 3 use?
The RHS 3 is built around the ATMEGA328P-A, from the AVR/Arduino family.
How big is the RHS 3 PCB?
The RHS 3 measures 51 × 61 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RHS 3?
66 components, from 37 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 RHS 3 design files?
From the pa-pa/HB-Sec-RHS-3 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the RHS 3 design in my own project?
The repository has no license, so all rights stay with pa-pa. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the RHS 3 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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