HardLabs

Sudi devboard

ahsanu123·sudi-keyboard·development-board/SUDI.Devboard/sudi-devboard/sudi-devboard.kicad_pcb

Sudi devboard PCB layout, top view — open source Nordic nRF board by ahsanu123

About the Sudi devboard PCB

Sudi devboard is an open source Nordic nRF PCB design by ahsanu123, published on GitHub under the MIT license. It is a 2-layer board measuring 47.7 × 38.5 mm, with 20 components from 19 distinct parts.

Its main chip is the AMS1117-3.3, from the Nordic nRF family. Other key parts include the NRF51X22-QFXX, CH340C, BQ24075RGT_DPPM, NRF52832-QFXX and MCP23017_SS. By type, the board carries 9 ICs, 6 connectors, 4 crystals and 1 diode.

It belongs with the keyboards, iot & wireless and power & battery designs in this gallery.

From the project

⌨️ Sudi V2 is custom wireless split keyboard

Development board intended to understanding NRF52 nordic series for wireless keyboard, with Battery Management System (BMS), Bluetooth Low Energy Communication, USB, Vsense and LED Matrix.

- NRF52820(5v tolerant, and USB, 256 kB flash, 32 kB RAM, QFN-40-EP(5x5), $2.6) - NRF52832(No 5v tolerant, and No USB, 512/256 kB flash, 64/32 kB RAM, QFN-48-EP(6x6), $2.75) - NRF52833QDXX(5v tolerant, and USB, 512 kB flash, 128 kB RAM, QFN-40-EP(5x5), $3.59) - NRF52840(5v tolerant, and USB, 1 MB flash, 256 kB RAM, WLCSP-94(3.5x3.6) More difficult to Solder but most complete feature, $5.22) - Add BMS into…

Sudi devboard, from the project README
From the project README

Main components on the Sudi devboard

AMS1117-3.3NRF51X22-QFXXCH340CBQ24075RGT_DPPMNRF52832-QFXXMCP23017_SSTPS63001_SEPIC_3V3MAX17048

Sudi devboard bill of materials (BOM)

20 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
nRF52833_QDxx
U1
1
NRF51X22-QFXX
SRV05-4
U3
1
CH340C
BQ24075RGT
U4
1
BQ24075RGT_DPPM
TP4056
U5
1
NRF52832-QFXX
SRV05-4
U7
1
MCP23017_SS
nRF52820-QDxx
U8
1
TPS63001_SEPIC_3V3
AMS1117-3.3
U9
1
MAX17048
MCP23017_SO
U10
1
nRF52832-QFxx
U11
1
32MHZ_CF4032M00020001
32Mhz
Y1
1
8MHZ
32.768kHz
Y2
1
16MHZ
32Mhz
Y3
1
32.768kHz
Y4
2
SWD_JLINK
J1, J4
1
Conn_01x08_Pin
J2
1
Conn_01x06_Pin
J5
1
AVR-ISP-6
Conn_01x08_Pin
J7
1
Conn_01x07_Pin
J9
1
1N4148
WS2812B-2020
D1

Sudi devboard design files

The KiCad project lives in the ahsanu123/sudi-keyboard repository on GitHub; these links point at the commit this page was built from.

Sudi devboard: common questions

What microcontroller does the Sudi devboard use?

The Sudi devboard is built around the AMS1117-3.3, from the Nordic nRF family.

How big is the Sudi devboard PCB?

The Sudi devboard measures 47.7 × 38.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sudi devboard?

20 components, from 19 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 Sudi devboard design files?

From the ahsanu123/sudi-keyboard 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 Sudi devboard design in my own project?

Yes, under the terms of its MIT license, which ahsanu123 chose for the repository.

Can I test firmware for the Sudi devboard 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.

More boards in sudi-keyboard

Similar boards