Schiffre nrf
About the Schiffre nrf PCB
Schiffre nrf is an open source PCB design by Bemeier, published on GitHub under the MIT license. It is a 2-layer board measuring 52 × 27.3 mm, with 24 components from 19 distinct parts.
Other key parts include the E73-2G4M08S1C, C86534, C32574 and TPD4E05U06DQAR. By type, the board carries 9 resistors, 4 ICs, 4 diodes, 2 transistors, 2 connectors and 1 crystal.
From the project
An NRF52840 based host board for USB & BLE connected Keyboards featuring a Flexible Flat Cable interconnect.
Main components on the Schiffre nrf
Schiffre nrf bill of materials (BOM)
24 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | E73-2G4M08S1C | E73-2G4M08S1C-52840 | U1 |
| 1 | C86534 XC6220 | SOT-23-5 | U2 |
| 1 | C32574 TP4054 | SOT-23-5 | U3 |
| 1 | TPD4E05U06DQAR Texas Instruments | USON-10_2.5x1.0mm_P0.5mm | U4 |
| 2 | C351408 AO3407 | SOT-23 | Q1, Q2 |
| 1 | C32346 32768kHz | Crystal_SMD_3215-2Pin_3.2x1.5mm | X1 |
| 1 | C324727 FH34SRJ-30S-0.5SH(50) | HRS_FH34SRJ-30S-0.5SH(50) | J5 |
| 1 | C709357 USB_C_Plug_USB2.0 | USB_C_Receptacle_Palconn_UTC16-G_3D | P1 |
| 1 | C2833485 SMD0805-050-16V | Fuse_0805_2012Metric | F1 |
| 1 | C191023 1N5819 | D_SOD-323F | D1 |
| 1 | C2290 SYSTEM_LED | LED_0603_1608Metric | D2 |
| 1 | C2286 CHARGE_LED | LED_0603_1608Metric | D3 |
| 1 | C727161 ESD5Z5V0 | D_SOD-523 | D4 |
| 1 | C1017 GZ2012D601TF | L_0805_2012Metric | FB1 |
| 1 | C25803 100K | R_0603_1608Metric | R1 |
| 3 | C25905 5.1K | R_0402_1005Metric | R2, R3, R5 |
| 2 | C11702 1K | R_0402_1005Metric | R4, R8 |
| 1 | C22935 1M | R_0603_1608Metric | R6 |
| 2 | C22976 2M | R_0603_1608Metric | R7, R9 |
Schiffre nrf design files
The KiCad project lives in the Bemeier/schiffre repository on GitHub; these links point at the commit this page was built from.
Schiffre nrf: common questions
How big is the Schiffre nrf PCB?
The Schiffre nrf measures 52 × 27.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Schiffre nrf?
24 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Schiffre nrf design files?
From the Bemeier/schiffre repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Schiffre nrf design in my own project?
Yes, under the terms of its MIT license, which Bemeier chose for the repository.