HardLabs

Dragon

DC801·DC26PartyBadge·Hardware/dragon.kicad_pcb

Dragon PCB layout, top view — open source Nordic nRF board by DC801

About the Dragon PCB

Dragon is an open source Nordic nRF PCB design by DC801, published on GitHub. It is a 2-layer board measuring 126 × 100.4 mm, with 74 components from 39 distinct parts.

Its main chip is the BMD-300, from the Nordic nRF family. Other key parts include the Minibadge 1, FT230XS, MCP73831T-2ACI/OT, Minibadge 2 and SHITTY_ADDON. By type, the board carries 25 resistors, 12 capacitors, 11 connectors, 10 diodes, 8 ICs and 7 switches.

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

From the project

Design and software for the DC26 DC801 badge

See the Hardware directory for more info, schematics and etc

Format your SD card as FAT32 and copy the contents of SD_Card into it

See the Software directory for more info

Awesome things, that's what! See the Software directory for more information.

Follow @rushan_ee or @hamster for updates

Main components on the Dragon

Minibadge 1FT230XSMCP73831T-2ACI/OTMinibadge 2SHITTY_ADDONTPS73633DBVTBMD-300

Dragon bill of materials (BOM)

74 components, 39 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Minibadge 1
U1
1
FT230XS
U2
1
MCP73831T-2ACI/OT
MCP73832-2-OT
U3
1
Minibadge 2
U4
2
SHITTY_ADDON
U5, U8
1
TPS73633DBVT
U6
1
BMD-300
BMD-300-A-R
U7
1
FDN360P
Q1
1
10118192-0001LF
Micro USB
J1
1
114-00841-68
Micro_SD_Card_SPI
J2
1
LiPo Battery
J3
1
3220-10-0300-00
JTAG
J4
1
XF2L-1035-1A
LCD
J5
1
GND
J6
1
UART_TX
J7
1
UART_RX
J8
1
SPKR_DRV
J9
1
SPKR_GND
J10
1
3.3V
J11
1
JS102011SAQN
Power
SW1
Show 19 more
QtyPartRefs
6
SW_Push
SW2, SW3, SW4, SW5, SW6, SW7
3
SML-D12V1WT86
RED
D1, D3, D4
1
SD0603S040S0R2
D_Schottky
D2
3
SML-D12Y1WT86
YEL
D5, D6, D11
3
SML-D12M1WT86
GRN
D8, D9, D10
2
C0201C470J4GAC7867
47pF
C1, C2
7
GRM033R60J104KE19D
0.1uF
C3, C7, C8, C9, C10, C11, C12
2
C0603C104K9RAC7867
4.7uF
C4, C6
1
GRM033R71C102KA01D
1nF
C5
2
RMCF0201FT27R0
27R
R1, R2
1
RMCF0201JT470R
470R
R3
1
RMCF0201JT2K00
2.0k
R4
1
RMCF0201FT806K
806k
R5
1
RC0201JR-072ML
2M
R6
8
RC0201JR-0775RL
75R
R7, R8, R9, R10, R12, R13, R14, R15
7
RMCF0201JG10K0
10k
R17, R21, R22, R23, R24, R25, R26
2
RMCF0201JT4K70
4.7k
R18, R19
1
RMCF0201FT33R0
33R
R20
1
RMCF0201JT10M0
10M
R27

Dragon design files

The KiCad project lives in the DC801/DC26PartyBadge repository on GitHub; these links point at the commit this page was built from.

Dragon: common questions

What microcontroller does the Dragon use?

The Dragon is built around the BMD-300, from the Nordic nRF family.

How big is the Dragon PCB?

The Dragon measures 126 × 100.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dragon?

74 components, from 39 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 Dragon design files?

From the DC801/DC26PartyBadge repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Dragon design in my own project?

The repository has no license, so all rights stay with DC801. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Dragon 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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