heyitscassio/carpo29Carpo is a 36 keys, low profile, choc spaced, split keyboard.
Carpo left is an open-source printed circuit board by heyitscassio, from the heyitscassio/carpo repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 126.3 × 92.7 mm with 68 parts on 87 nets, routed with 570 tracks and 59 vias.
It is built around the MCP73831, 1N5819W and AO3401A, with the USBLC6-2P6 among its other parts. Its parts include 21 diodes, 19 switches, 9 resistors, 5 capacitors and 3 ICs. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18 +2 |
| 17 | SW_SPST | marbastlib-choc:SW_choc_v1_HS_CPG135001S30_1u | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17 +1 |
| 4 | MountingHole | carpo:StandoffHole_4.3mm | H1, H2, H3, H4 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6, C7 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1N5819W | Diode_SMD:D_SOD-123 | D19 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 2M | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 500mA | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | 806/820k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | BATT_CONN1 | Connector_Molex:Molex_Pico-EZmate_78171-0002_1x02-1MP_P1.20mm_Vertical | J2 |
| 1 | Blue LED | LED_SMD:LED_0603_1608Metric | D21 |
| 1 | MCP73831 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | ON_OFF | Button_Switch_SMD:SW_SPDT_PCM12 | SW19 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D20 |
| 1 | RPROG | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | SWD | carpo:Header_SWD | JSWD1 |
| 1 | SW_Push | Button_Switch_SMD:Panasonic_EVQPUL_EVQPUC | R_TACT1 |
| 1 | SW_SPST | marbastlib-choc:SW_choc_v1_HS_CPG135001S30_1.5u | SW18 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | ESD1 |
| 1 | USB_C_Receptacle | carpo:USB-C_C168688 | J1 |
| 1 | XC6206P LDO | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | nRF52840_holyiot_18010 | marbastlib-various:nRF52840_holyiot_18010 | U1 |
It measures 126.3 × 92.7 mm and has 2 copper layers, 1.6 mm thick.
68 parts, built around the MCP73831, 1N5819W, AO3401A and USBLC6-2P6. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the heyitscassio/carpo repository on GitHub, at the commit this page was made from: the board is pcb/left/carpo_left.kicad_pcb and its schematic pcb/left/carpo_left.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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