Chicker
About the Chicker PCB
Chicker is an open source RP2040/RP2350 PCB design by sfunderbots, published on GitHub. It is a 4-layer board measuring 152.2 × 80 mm, with 151 components from 75 distinct parts.
Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the RS8802HXK, AMS1117-3.3, LT3750EMS#PBF, W25Q128JVSIQ and MCP2515T-I/ST. By type, the board carries 53 resistors, 45 capacitors, 30 diodes, 10 ICs, 4 transistors and 2 crystals.
From the project
PCB etc.
This is a high voltage board that uses a LT3750 Flyback Charge controller to charge two 1000micro farad capacitors to 210V (these are 250V rated)
The board was designed in KiCad and the Files are available in this Github. It uses a novel power pillar design to transmit power and signals over Brass standoffs (including HV) which go to the midplate (power distribution board and chassis).
Main components on the Chicker
Chicker bill of materials (BOM)
151 components, 75 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RP2040 RPI2040 Raspberry Pi | QFN56_7X7_RPI | U1 |
| 1 | RS8802HXK MCP14A0454-E/SN_alternate Jiangsu RUNIC Tech | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | AMS1117-3.3 Advanced Monolithic Systems | SOT-223-3_TabPin2 | U3 |
| 1 | LT3750EMS#PBF LT3750 Analog Devices | MSOP-10_3x3mm_P0.5mm | U4 |
| 1 | W25Q128JVSIQ Winbond Elec | SOIC-8_208mil | U5 |
| 1 | MCP2515T-I/ST MCP2515-xST Microchip | TSSOP-20_4.4x6.5mm_P0.65mm | U7 |
| 2 | LMV321IDBVR AMP_MCP6231UT_alternate Texas Instruments | SOT-23-5 | U8, U11 |
| 2 | TS-1187A-B-A-B SW_TS-1187A-B-A-B XKB Connection | SW_TS-1187A-B-A-B | U9, U10 |
| 1 | CJU15N10 IRFR3410TRPBF_alternate Jiangsu Changjing Electronics Technology Co., Ltd. | DPAK-3_ONS | Q2 |
| 2 | BSS131H6327 Q_TN2130K1-G_alternate Infineon Technologies | SOT95P240X111-3N | Q5, Q8 |
| 1 | SWD2N60DC IPD60R3K4CEAUMA1_alternate Samwin | DPAK-3_ONS | Q6 |
| 1 | X322512MSB4SI XTAL-12MHZ-YXC YXC Crystal Oscillators | SMD3225-4P | Y1 |
| 1 | X50328MSB2GI ABM3-8.000MHZ-D2Y-T(alternate) YXC Crystal Oscillators | ABM3 | Y2 |
| 1 | USB4145-03-0170-C GCT | GCT_USB4145-03-0170-C_REVA2 | J2 |
| 1 | JST_2P_LIMITSW | JST_B2B-XH-A_LF__SN_ | J4 |
| 1 | 0501010.WR1 Littelfuse | Fuse_1206_3216Metric | F1 |
| 3 | ToolingHoleJLC | ToolingHoleJLC | H10, H11, H12 |
| 1 | DA2034-ALD DA2034 Coilcraft | DA2034-ALD_COC | T1 |
| 3 | SMCJ16A RUILON(Shenzhen Ruilongyuan Elec) | D_SMC | D1, D10, D30 |
| 2 | ES8J MUR860J_alternate LGE | D_SMC | D2, D11 |
Show 55 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | US2MB MURS160-E3/52T_alternate hongjiacheng | D_SMB | D3 |
| 1 | NCD0805R1 LED_red Foshan NationStar Optoelectronics | LED_1206MERGE0805 | D4 |
| 1 | SMBJ5338B SMBJ5338B-TP_alternate hongjiacheng | D_SMB | D5 |
| 3 | KT-0805G LED Hubei KENTO Elec | LED_0805_2012Metric | D6, D8, D15 |
| 1 | KT-0603W LED_blue Everlight Elec | LED_0603_1608Metric | D7 |
| 2 | KT-0805Y LED Hubei KENTO Elec | LED_0805_2012Metric | D9, D13 |
| 1 | SMBJ5352B-TP 3SMBJ5929B-TP_alternate Micro Commercial Co | D_SMB | D12 |
| 1 | USM1 Vishay Intertech | D_SMA | D14 |
| 3 | CUS08F30,H3F 220mV Schottky Vishay Intertech | D_SOD-323_HandSoldering | D16, D17, D18 |
| 5 | H3V3HT2U hongjiacheng | SOT-23 | D19, D26, D27, D28, D29 |
| 6 | BZX584C3V3 BZT52C3V3T-7 hongjiacheng | D_SOD-523 | D20, D21, D22, D23, D24, D25 |
| 2 | 25SVPF100M 25SVPF100M_alternate | CAP_25SVPF100M | C1, C2 |
| 3 | CL31A226KAHNNNE 22u_1206 Murata | C_1206_3216Metric | C3, C4, C8 |
| 1 | ESMQ251VSN102MQ45S 1000u Chemi-Con | CP_Radial_Horizontal_D25.4mm_H45mm | C5 |
| 1 | ESMQ251VSN102MQ45S 1000u Chemi-Con | CP_Radial_Horizontal_D25.4mm_H45mm_reversed | C6 |
| 1 | CL10C101JB8NNNC 100p Samsung Electro-Mechanics | C_0603_1608Metric | C7 |
| 8 | CC0603KRX7R9BB104 0.1u YAGEO | C_0603_1608Metric | C9, C26, C32, C33, C34, C38, C44, C45 |
| 2 | 0805B152K500NT 1500p FH (Guangdong Fenghua Advanced Tech) | C_0805_2012Metric | C10, C39 |
| 4 | GRM21BR61H106KE43L 10u Murata | C_0805_2012Metric | C11, C12, C37, C40 |
| 8 | CL05B104KB54PNC 0.1u_0402 | C_0402_1005Metric | C13, C14, C15, C16, C18, C19, C20, C21 |
| 3 | CL05A105KA5NQNC 1u_0402 Samsung Electro-Mechanics | C_0402_1005Metric | C17, C22, C23 |
| 2 | CC0603JRNPO9BN270 27p YAGEO | C_0603_1608Metric | C24, C25 |
| 1 | CC0603KRX7R9BB104 0.17u YAGEO | C_0603_1608Metric | C27 |
| 1 | C3225X7T2J104KT000N 0.1u_600V TDK | C_1210_3225Metric | C28 |
| 3 | 0603B103K500NT 0.01u YAGEO | C_0603_1608Metric | C29, C41, C43 |
| 2 | CL10C220JB8NNNC 22p Samsung Electro-Mechanics | C_0603_1608Metric | C30, C31 |
| 3 | CL10A105KB8NNNC 1u Samsung Electro-Mechanics | C_0603_1608Metric | C35, C36, C42 |
| 7 | 0603WAF1003T5E 100k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R1, R9, R10, R27, R29, R32, R50 |
| 6 | 0603WAF1002T5E 10k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R2, R15, R16, R28, R30, R41 |
| 1 | 0603WAF2401T5E 2.4k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R3 |
| 2 | 0603WAF750JT5E 75R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R4, R42 |
| 1 | 0603WAF4022T5E 40.2k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R5 |
| 1 | 0603WAF3302T5E 33k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R6 |
| 1 | FRM121WFR008TM 8m FOJAN | R_1206_3216Metric | R7 |
| 2 | 0805W8F200KT5E 2 UNI-ROYAL(Uniroyal Elec) | R_0805_2012Metric | R8, R43 |
| 2 | 0603WAF5101T5E 5.1k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R11, R12 |
| 1 | 0603WAF2000T5E 200R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R13 |
| 2 | 0402WGF0000TCE 0R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R14, R57 |
| 3 | 0603WAF1001T5E 1k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R17, R18, R39 |
| 2 | 0603WAF330JT5E 33R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R20, R21 |
| 1 | 0603WAF2003T5E R_200k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R22 |
| 2 | 0603WAF4703T5E R_470k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R23, R24 |
| 2 | 0603WAF0000T5E 0ohm UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R25, R26 |
| 1 | 0603WAF2703T5E 270k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R31 |
| 2 | 0603WAF5104T5E 5.1M UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R33, R34 |
| 1 | 0603WAF4702T5E 47k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R37 |
| 1 | 0603WAF8200T5E 820R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R38 |
| 2 | 0603WAF5100T5E 510R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R40, R45 |
| 2 | PWR220T-35-2001J 2k 35W Bourns | TO-220-2_Horizontal_TabDown | R44, R48 |
| 1 | 0603WAF2001T5E 2k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R47 |
| 1 | 0603WAF0000T5E R_0OHM_JUMPER UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R49 |
| 1 | 0603WAF5102T5E 51k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R51 |
| 1 | 0603WAF3002T5E 30k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R52 |
| 3 | 0603WAF3303T5E 330k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R53, R54, R55 |
| 1 | 0603WAF1302T5E 13k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R56 |
Chicker design files
The KiCad project lives in the sfunderbots/Electrical repository on GitHub; these links point at the commit this page was built from.
Chicker: common questions
What microcontroller does the Chicker use?
The Chicker is built around the RP2040, from the RP2040/RP2350 family.
How big is the Chicker PCB?
The Chicker measures 152.2 × 80 mm, has 4 copper layers and is 1.6002 mm thick.
How many components are on the Chicker?
151 components, from 75 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 Chicker design files?
From the sfunderbots/Electrical 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 Chicker design in my own project?
The repository has no license, so all rights stay with sfunderbots. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Chicker without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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