2 layers
Nrf52832 qfax
gufaye/tp-keyfinder
A project developed as part of an electronic and software design course.
25 parts
2 layers33 × 53.3 mm
Nrf52832 devboard
brrastak/nrf52832_devboardThe project main intension is the first experiment in designing bluetooth hardware. Design is not tested!
- Size
- 33 × 53.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 53
- Pads
- 160
- Tracks, vias
- 256, 154
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Oct 2024
- Updated
- 2 Nov 2024
Overview
Nrf52832 devboard is an open-source printed circuit board by brrastak, from the brrastak/nrf52832_devboard repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 33 × 53.3 mm with 29 parts on 53 nets, routed with 256 tracks and 154 vias.
It is built around the AMS1117-3.3 and NRF52832-QFAA. Its parts include 12 capacitors, 4 resistors, 3 connectors, 3 inductors and 2 ICs. It belongs with the microcontroller boards boards and the nRF52 and nRF5x boards of this library.
Main components
2
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
NRF52832-QFAA
QFN-48_EP_6.0x6.0x0.4PQFN-48-EP(6x6) New Arrivals ROHSNordic SemiconUncategorised
README
README.mdnRF52832 development board
The project main intension is the first experiment in designing bluetooth hardware. Design is not tested!
The TI antenna SWRA117D is used (AN 043).
USB connector and voltage regulator circuitry are optional and only provide power.
Known issues
It turns out that using P10 as an LED pin is not the best idea, as it is one of the NFC pins. To use it as a GPIO, you first need to disable the NFC pin protection. Using Rust and the nRF52832 PAC, this is done with the following code (the dedicated NVRAM register value should be set once and the new configuration is taken into account after MCU reset):
p.NVMC.config.write(|w| w.wen().wen());
p.UICR.nfcpins.write(|w| w.protect().disabled());
p.NVMC.config.reset();Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C3, C4 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11, C12 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4 |
| 2 | Conn_01x20_Pin | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J1, J2 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 0.8p NP0 5% | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 1.0u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 1 | 100p NP0 5% | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 10uH 50mA | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | 12p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C9 |
| 1 | 12p 2% | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C10 |
| 1 | 15nH RF 10% | Inductor_SMD:L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | L2 |
| 1 | 3.9nH RF 5% | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | 32MHz 8pF 40ppm | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | NA | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | SWRA117D_2.4GHz | RF_Antenna:Texas_SWRA117D_2.4GHz_Left | AE1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J3 |
| 1 | nRF52832-QFAA | Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.6x4.6mm | U1 |
| 1 | stamp | project:stamp | G1 |
Questions
How big is the Nrf52832 devboard PCB?
It measures 33 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nrf52832 devboard use?
29 parts, built around the AMS1117-3.3 and NRF52832-QFAA. 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.
Where can I download the Nrf52832 devboard KiCad files?
From the brrastak/nrf52832_devboard repository on GitHub, at the commit this page was made from: the board is nrf52832_devboard.kicad_pcb and its schematic nrf52832_devboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nrf52832 devboard design in my own project?
Its repository publishes it under the CERN-OHL-P-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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