4 layers53.7 × 53.7 mm
RocketPower
Sanassah/RocketPower
Active fin control flight computer for a model rocket, built from scratch: custom PCB, Cortex-M7 firmware, PD attitude control, and hardware-in-the-loop testing.
133 parts6MIT
2 layers100 × 70 mm
Inuk base
NilsMinor/inuk-baseNRF52 controller board to create connected garden / path lights based on the fruity-mesh protocol
- Size
- 100 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 84
- Nets
- 73
- Pads
- 302
- Tracks, vias
- 647, 167
- Pours
- 16
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Apr 2020
- Updated
- 23 May 2020
Overview
Inuk base is an open-source printed circuit board by NilsMinor, from the NilsMinor/inuk-base repository on GitHub. It is a 2-layer board of 100 × 70 mm with 84 parts on 73 nets, routed with 647 tracks and 167 vias.
It is built around the AP2112K-3.3, DMG3406L and B230-13-F(MS), with the BC817 among its other parts. Its parts include 29 resistors, 13 capacitors, 10 connectors, 6 transistors and 4 ICs.
Main components
4
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
DMG3406L
SOT-23-55℃~+150℃ 1 N-channel 11.2nC@10V 2.8A 2V 30V 43pF 495pF 70mΩ@4.5V 770mW SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
B230-13-F(MS)
SMBSchottky DiodesMSKSEMIBC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
README
README.mdInuk base
This board is used in my open source smart garden light project. It is a 2 layer 70 mm x 100 mm design and serves as an NRF52 module carrier. The board is powered by one 18650 rechargeable lipo and charged by an TP4056 module with a 6V solar cell. The light interface can controll up to five pwm controlled 3W LEDs.
Pin description
| Pin | Function | Note |
|---|---|---|
| P0.26 | LED D2 | high active |
| P0.27 | LED D3 | high active |
| P0.25 | BUTTON SW2 | low active |
| P0.06 | UART TX | |
| P0.08 | UART RX | |
| P0.07 | UART RTS | |
| P0.05 | UART CTS | |
| P0.02 | AIN0 | analog input - VBAT |
| P0.03 | AIN1 | analog input - VSOLAR |
| P0.04 | AIN2 | analog input |
| P0.28 | AIN4 | analog input - VLDR |
| P0.29 | AIN5 | analog input |
| P0.30 | AIN6 | analog input |
| P0.31 | AIN7 | analog input |
| P0.11 | LIO1 | pwm output led 1 |
| P0.12 | LIO2 | pwm output led 2 |
| P0.13 | LIO3 | pwm output led 3 |
| P0.14 | LIO4 | pwm output led 4 |
| P0.15 | LIO5 | pwm output led 5 |
| P0.16 | PIR INPUT | pir input - high active |
Software
The inuk-base board is equipped with an E73-2G4M04S1B module that contains an nrf52832 SoC from nordic semiconductor. The nrf52832 bluetooth SoC comes with cortex-m4, 64K RAM and 512K ROM.
Note
It might happen that the E73 module comes with locked UICR. In order to unlock the flash download nrfjprog from nordic. Run the following command:
nrfjprog --recoverThe output should then look like :
Recovering device. This operation might take 30s.
Erasing user code and UICR flash areas.Click on the image below to see the gerber files
Needs to be changed for version 2
- Remove direct GND connection poligons on E73 module. The direct GND connection is difficult to solder and needs
- Add (+) symbol to battery connector
- The DCDC on the NRF52 module is not supported, this should be changed in the next version.
##View in 3D
Parts
84| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R4, R10, R11, R12, R13, R14 |
| 8 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9, R15, R16, R17, R19, R21, R26, R29 |
| 5 | 0R5 | Resistor_SMD:R_1210_3225Metric_Pad1.42x2.65mm_HandSolder | R18, R20, R22, R23, R24 |
| 5 | 10uF | Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder | C3, C4, C6, C11, C12 |
| 5 | DMG3406L | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 5 | Jumper_NO_Small | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C5, C7, C8, C13 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R25, R27, R28 |
| 2 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2 |
| 2 | 2M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6, R7 |
| 2 | 806k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R8 |
| 2 | Battery_Cell | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT1, BT2 |
| 2 | Conn_01x02_Male | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J3, J4 |
| 2 | Conn_01x03_Male | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J7 |
| 2 | Conn_01x08_Male | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical_SMD_Pin1Left | J9, J10 |
| 2 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D3 |
| 2 | NC | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | SW_Push | Button_Switch_SMD:Panasonic_EVQPUL_EVQPUC | SW2, SW3 |
| 2 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP6, JP7 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | B230-13-F | Diode_SMD:D_SMB | D1 |
| 1 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q6 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J2 |
| 1 | Conn_01x08 | Custom:LED_shield | J5 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J1 |
| 1 | E73-2G4M04S-52832 | RF_Module:E73-2G4M04S | U1 |
| 1 | Fuse | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | Logo_NM | Custom:Logo_NM | U4 |
| 1 | SW_Push_SPDT | Button_Switch_SMD:SW_SPDT_CK-JS102011SAQN | SW1 |
| 1 | TP4056-module | Module:TP4056-module | U2 |
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Questions
How big is the Inuk base PCB?
It measures 100 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Inuk base use?
84 parts, built around the AP2112K-3.3, DMG3406L, B230-13-F(MS) and BC817. 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 Inuk base KiCad files?
From the NilsMinor/inuk-base repository on GitHub, at the commit this page was made from: the board is inuk-base.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Inuk base design in my own project?
Its repository states no licence, so its author keeps all rights: ask NilsMinor before reusing the design.