Drake
Reisi·Drake·hardware/drake_10b/drake_10b.kicad_pcb
About the Drake PCB
Drake is an open source Nordic nRF PCB design by Reisi, published on GitHub under the BSD-2-Clause license. It is a 4-layer board measuring 47.9 × 47.9 mm, with 160 components from 34 distinct parts.
Its main chip is the NRF52832-QFXX, from the Nordic nRF family. Other key parts include the XC6206P332MR-G, TP4054, LIS2DH12TR, BDR6125 and ITR8307-S18-TR8. By type, the board carries 68 capacitors, 55 diodes, 18 resistors, 6 ICs, 5 connectors and 4 switches.
It belongs with the iot & wireless designs in this gallery.
From the project
The Drake hardware is a multi-purpose PCB which can be used to build a wireless dropper post actuator or a rear light.
The Drake hardware is a multi-purpose PCB which can be used to build a wireless dropper post actuator or a rear light.
- Bluetooth connectivity for remote control and configuration. - I2C connectivity for control, configuration and sensor readings. - construction files for Fox Transfer dropper posts available
- two configurations with either 16 or 44 WS2812 LEDs - 8 configurable modes - configurable LED pattern - ability to control a dropper actuator over a FFC (using I2C)

Main components on the Drake
Drake bill of materials (BOM)
160 components, 34 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NRF52832-QFXX nRF52832-QFxx | QFN-48-1EP_6x6mm_P0.4mm_EP4.6x4.6mm | U1 |
| 1 | XC6206P332MR-G | SOT-23-3 | U2 |
| 1 | TP4054 | SOT-23-5 | U3 |
| 1 | LIS2DH12TR | LGA-12_2x2mm_P0.5mm | U4 |
| 1 | BDR6125 | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | ITR8307-S18-TR8 | Everlight_ITR1201SR10AR | U6 |
| 1 | CRYSTAL_GND24 Crystal_GND24 | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J2 |
| 1 | C131337 Li-Ion | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J3 |
| 3 | CONN_01X04 Conn_01x04 | Jushuo_AFC01-S04FCC-00_1x04-1MP_P0.50_Horizontal | J5, J6, J8 |
| 1 | GT-RF1125A-01G | U.FL_Hirose_U.FL-R-SMT-1_Vertical | AE2 |
| 1 | JUMPER_2_BRIDGED Jumper_2_Bridged | R_0402_1005Metric | JP1 |
| 4 | SW_Push | SW_Push_1P1T_XKB_TS-1187A | SW1, SW2, SW3, SW4 |
| 3 | H5VND5UB | D_SOD-523 | D1, D2, D15 |
| 4 | H5VU13U | Diodes_DFN1006-3 | D3, D16, D21, D54 |
| 1 | C2286 red | LED_0603_1608Metric | D4 |
| 1 | C89811 yellow | LED_0603_1608Metric | D5 |
| 1 | C2290 white | LED_0603_1608Metric | D6 |
| 45 | WS2812B-2020 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D7, D8, D9, D10, D11, D12, D13, D14 +37 |
| 1 | 3N9 3n9 | L_0402_1005Metric | L1 |
Show 14 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 12P 12p | C_0402_1005Metric | C1, C2, C69, C70 |
| 1 | 0P8 0p8 | C_0402_1005Metric | C3 |
| 8 | 100N 100n | C_0402_1005Metric | C4, C8, C9, C14, C16, C20, C66, C68 |
| 1 | 100P 100p | C_0402_1005Metric | C6 |
| 3 | 1u | C_0402_1005Metric | C7, C17, C19 |
| 5 | 10U 10u | C_0603_1608Metric | C10, C12, C13, C15, C18 |
| 46 | 100N 100n | C_0603_1608Metric | C21, C22, C23, C24, C25, C26, C27, C28 +38 |
| 2 | 22 | R_0402_1005Metric | R1, R2 |
| 3 | 1M | R_0402_1005Metric | R3, R8, R10 |
| 5 | 3K3 3k3 | R_0402_1005Metric | R4, R11, R12, R15, R16 |
| 3 | 5K1 5k1 | R_0402_1005Metric | R5, R7, R9 |
| 1 | 2R2 2r2 | R_0603_1608Metric | R6 |
| 1 | 75K 75k | R_0402_1005Metric | R13 |
| 3 | 1K5 1k5 | R_0402_1005Metric | R14, R17, R18 |
Drake design files
The KiCad project lives in the Reisi/Drake repository on GitHub; these links point at the commit this page was built from.
Drake: common questions
What microcontroller does the Drake use?
The Drake is built around the NRF52832-QFXX, from the Nordic nRF family.
How big is the Drake PCB?
The Drake measures 47.9 × 47.9 mm, has 4 copper layers and is 1.15168 mm thick.
How many components are on the Drake?
160 components, from 34 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 Drake design files?
From the Reisi/Drake 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 Drake design in my own project?
Yes, under the terms of its BSD-2-Clause license, which Reisi chose for the repository.
Can I test firmware for the Drake without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.
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