Handcart hw
About the Handcart hw PCB
Handcart hw is an open source Raspberry Pi PCB design by eagletrt, published on GitHub. It is a 2-layer board measuring 262.2 × 100 mm, with 196 components from 88 distinct parts.
Its main chip is the Raspberry_Pi_2_3, from the Raspberry Pi family. Other key parts include the MAX11337ATJ+, Tex_DCDC_v2, DCDC2510, PCA9634PW,118 and MCP2515-xSO. By type, the board carries 82 resistors, 32 connectors, 28 capacitors, 19 transistors, 16 diodes and 7 ICs.
It belongs with the power & battery designs in this gallery.
From the project
🛒 Hardware for Fenice's charging handcart
Main components on the Handcart hw
Handcart hw bill of materials (BOM)
196 components, 88 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX11337ATJ+ | QFN50P500X500X80-33N | IC1 |
| 1 | Tex_DCDC_v2 | Tex_DCDC_v2_horizontal | U1 |
| 1 | DCDC2510 | DCDC2510_Horizontal | U2 |
| 1 | PCA9634PW,118 | SOP65P640X110-20N | U3 |
| 1 | MCP2515-xSO | SOIC-18W_7.5x11.6mm_P1.27mm | U4 |
| 1 | MCP2562-E-SN | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | MAX3221 | SSOP-16_4.4x5.2mm_P0.65mm | U6 |
| 1 | SSM3K361TU,LF | SOTFL65P210X75-3N | Q1 |
| 3 | 2N7002NXAK | SOT-23 | Q2, Q3, Q15 |
| 3 | NTR5105PT1G | SOT-23 | Q4, Q5, Q14 |
| 8 | SSM3K361TU,LF | SOTFL65P210X75-3N | Q6, Q7, Q8, Q9, Q10, Q11, Q18, Q19 |
| 2 | 2N7002NXAKR | SOT-23 | Q12, Q13 |
| 1 | 2N7002NXAKR 2N7002NXAK | SOT-23 | Q16 |
| 1 | FQP17P06 | TO-220-3_Vertical | Q17 |
| 1 | 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 2 | 100nF | R_Array_Concave_4x0603 | CN1, CN2 |
| 1 | ROTARY ENCODER | Molex_Micro-Fit_3.0_43650-0515_1x05_P3.00mm_Vertical | J1 |
| 1 | ARROW_KEYS_1 | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J2 |
| 1 | ARROW_KEYS_2 | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J3 |
| 1 | ARROW_KEYS_3 | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J4 |
Show 68 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ARROW_KEYS_4 | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J5 |
| 1 | RESET_BUTTON | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J6 |
| 1 | TSMS | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J7 |
| 1 | MUSHROOM | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J8 |
| 2 | 1-776279-1 | TE-17762791 | J9, J24 |
| 1 | SPARE_SUPPLY | Molex_Micro-Fit_3.0_43045-1012_2x05_P3.00mm_Vertical | J10 |
| 1 | CAN | Molex_Micro-Fit_3.0_43650-0315_1x03_P3.00mm_Vertical | J11 |
| 1 | SPARE_CHARGER | Molex_Micro-Fit_3.0_43045-0612_2x03_P3.00mm_Vertical | J12 |
| 1 | SPARE_BMS | Molex_Micro-Fit_3.0_43045-1012_2x05_P3.00mm_Vertical | J13 |
| 1 | ADD_FAN | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J14 |
| 1 | EXT_SCREEN | Molex_Micro-Fit_3.0_43650-0315_1x03_P3.00mm_Vertical | J15 |
| 1 | CHARGER | TE_776266-4 | J16 |
| 1 | BMS | TE_776087-4 | J17 |
| 1 | SPARE_RASPI | Molex_Micro-Fit_3.0_43045-0412_2x02_P3.00mm_Vertical | J18 |
| 1 | Raspberry_Pi_2_3 | raspberrypi_hat_template | J19 |
| 1 | RASPI_FAN | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J20 |
| 1 | GREEN_TS_OFF | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J21 |
| 1 | RED_IMD_FAULT | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J22 |
| 1 | RED_BMS_FAULT | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J23 |
| 1 | TSAL | Molex_Micro-Fit_3.0_43650-0415_1x04_P3.00mm_Vertical | J25 |
| 1 | DISCHARGE_RELAY | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J27 |
| 1 | 1-776279-1 COOLING | TE-17762791 | J28 |
| 1 | SPARE_ADC | Molex_Micro-Fit_3.0_43045-0612_2x03_P3.00mm_Vertical | J29 |
| 1 | SD_END_TEST_POINT | Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical | J30 |
| 1 | SPARE_GEN | Molex_Micro-Fit_3.0_43045-0412_2x02_P3.00mm_Vertical | J31 |
| 1 | SD1209TT-A1 Buzzer | Buzzer_TDK_PS1240P02BT_D12.2mm_H6.5mm | BZ1 |
| 1 | 10A | Keystone-Fuseholder 3557-2 | F1 |
| 1 | 5A | Keystone-Fuseholder 3557-2 | F2 |
| 1 | 2A | Keystone-Fuseholder 3557-2 | F3 |
| 1 | RASPI_BYPASS | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | 3V3_RASPI | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | 5V_ADD_STRIP | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | 3V3_ADD_STRIP | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | BRUSA RX | PinHeader_1x03_P2.54mm_Vertical | JP5 |
| 1 | AutoShutdown | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | EX12U1S | EX12U1S | K1 |
| 4 | 1N4148W | D_SOD-123 | D1, D2, D3, D17 |
| 1 | 24V | R_0805_2012Metric | D4 |
| 1 | RGL34B | D_MiniMELF | D5 |
| 1 | 12V | R_0805_2012Metric | D6 |
| 1 | VSD | R_0805_2012Metric | D8 |
| 1 | 5V | R_0805_2012Metric | D9 |
| 1 | 3V3 | R_0805_2012Metric | D10 |
| 1 | DDZ3V3ASF-7 | D_SOD-323 | D11 |
| 4 | BAT54S | SOT-23 | D12, D13, D14, D15 |
| 1 | DDZ13ASF 13V | D_SOD-323F | D16 |
| 2 | 18pF | C_0603_1608Metric | C1, C2 |
| 17 | 100nF | C_0603_1608Metric | C3, C4, C5, C6, C7, C8, C9, C10 +9 |
| 3 | 10uF | C_0805_2012Metric | C11, C30, C31 |
| 4 | C | C_0805_2012Metric | C18, C22, C26, C29 |
| 1 | 470nF | C_0805_2012Metric | C28 |
| 1 | C | R_0805_2012Metric | C35 |
| 19 | 22R | R_0603_1608Metric | R1, R6, R9, R10, R11, R18, R19, R24 +11 |
| 18 | 330k | R_0603_1608Metric | R2, R7, R12, R13, R14, R20, R21, R26 +10 |
| 3 | 4k7 | R_0603_1608Metric | R3, R4, R5 |
| 1 | 120R | R_0603_1608Metric | R8 |
| 3 | 120R | R_0805_2012Metric | R15, R16, R17 |
| 9 | R | R_0805_2012Metric | R22, R23, R28, R29, R34, R35, R70, R76 +1 |
| 3 | 10k | R_0603_1608Metric | R36, R47, R48 |
| 1 | 22k | R_0603_1608Metric | R46 |
| 2 | 2k7 | R_0603_1608Metric | R49, R50 |
| 10 | R | R_0603_1608Metric | R53, R54, R57, R58, R61, R62, R64, R65 +2 |
| 3 | 27k | R_0603_1608Metric | R55, R59, R66 |
| 3 | 3k3 | R_0603_1608Metric | R56, R60, R67 |
| 1 | 1k | R_0603_1608Metric | R71 |
| 2 | 100k | R_Array_Convex_4x0603 | RN1, RN2 |
| 2 | 3k3 | R_Array_Convex_4x0603 | RN3, RN4 |
| 2 | 27k | R_Array_Convex_4x0603 | RN5, RN6 |
Handcart hw design files
The KiCad project lives in the eagletrt/handcart-hw repository on GitHub; these links point at the commit this page was built from.
- Layouthandcart.kicad_pcb
- Schematichandcart.kicad_sch
Handcart hw: common questions
What microcontroller does the Handcart hw use?
The Handcart hw is built around the Raspberry_Pi_2_3, from the Raspberry Pi family.
How big is the Handcart hw PCB?
The Handcart hw measures 262.2 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Handcart hw?
196 components, from 88 distinct parts. The full bill of materials is listed on this page.
Where can I download the Handcart hw design files?
From the eagletrt/handcart-hw repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Handcart hw design in my own project?
The repository has no license, so all rights stay with eagletrt. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Handcart hw 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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