

Tikk hw
sensor/io front panel for low cost keyboard bluetooth breakout
- Size
- 18.1 × 39 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 155
- Nets
- 56
- Pads
- 390
- Tracks, vias
- 1,489, 235
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Jul 2025
- Updated
- 21 Aug 2025
Overview
Tikk hw is an open-source printed circuit board by golioth, from the golioth/tikk-hw repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 4-layer board of 18.1 × 39 mm with 155 parts on 56 nets, routed with 1,489 tracks and 235 vias.
It is built around the IS31FL3731-QFLS2-TR, TMP102AIDRLR(UMW) and F.0402.00003/P2-0402R1TS2-045T-001, with the CC0402KRX7R7BB104, CL31A107MQHNNNE and CC0603JRNPO8BN561 among its other parts. Its parts include 14 capacitors, 7 resistors, 6 ICs, 2 connectors and 2 switches. It belongs with the radio and wireless and sensors and measurement boards and the nRF52 and nRF5x boards of this library.
Main components
11IS31FL3731-QFLS2-TR
QFN-28-EP(4x4)-40℃~+85℃ 2.7V~5.5V Built-in PWM QFN-28-EP(4x4) LED Drivers ROHSISSIDigital Tube DriversTMP102AIDRLR(UMW)
SOT-563-40℃~+125℃ 1.4V~5.5V 12bit 26ms I2C、SMBus Temperature threshold monitoring、Low-power standby、Configurable temperature output ±0.5℃ SOT-563 Temperature Sensors ROHSUMWTemperature SensorsF.0402.00003/P2-0402R1TS2-045T-001
0402LED Indication - DiscreteTUOZHANCC0402KRX7R7BB104
0402100nF 16V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMTCL31A107MQHNNNE
1206100uF 6.3V X5R ±20% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTCC0603JRNPO8BN561
060325V 560pF NP0 ±5% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMTRC0402FR-07100KL
UncategorisedUnknown makerTS24CA
SMD,4.6x1.8mm-20℃~+70℃ 1.6N 1.9mm 12V 20 thousand cycles 3.5mm 4.7mm 50mA Black No Rectangular Button SMD(SMT) Tab SPST Surface Mount, Right Angle Without Bracket SMD,4.6x1.8mm Tactile Switches ROHSSHOU HANTactile SwitchesCL21A106KAYNNNE
080510uF 25V X5R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTPZ254R-11-04P
弯插,P=2.54mm-40℃~+105℃ 1 1x4P 2.54mm 2.5mm 250V 3A 4P 6mm Black Brass Pin Header Right Angle 弯插,P=2.54mm Pin Headers ROHSXFCNPin HeadersZX-SH1.0-4PWT
SMD,P=1mm,卧贴-40℃~+85℃ 1 1A 1mm 1x4P 3.15mm 4 4.3mm 4P 50V 6.35mm Auxiliary Solder Pin Beige Brass LCP SH Surface Mount, Right Angle Tin SMD,P=1mm,卧贴 Wire To Board Connector ROHSMegastarWire To Board Connector
README
README.mdTikk Bluetooth Sensor / Output Board
We created the Tikk board as an affordable* board ($15 in low volume) for displaying the capabilities of Golioth's Bluetooth Connectivity. It plugs into a low cost ($3) Tenstar Robot nRF52840 breakout board, targeted at Keybord makers. We will have many of these nodes surrounding a Golioth gateway to showcase all of the uplink and downlink functions available to users. The focus was on easily demonstrated functions, such as LEDs and motor drivings for outputs and various in-tree Zephyr supported sensors for inputs.
Rev A Preview Image
Rev A Photos
Features
This board has the following characteristics when soldered to something like the Tenstar Promicro
- 105 LEDs in 0402 format, individually addressable in a 7x15 matrix with the IS31FL3731
- Two H-Bridge chips (L9110S) for driving a single stepper or two dc motors
- 3 axis accelerometer (LIS2DH12)
- Temperature sensor (TMP102)
- QWIIC / Stemma header to expand breakout boards*
- User button
- Reset button
- A voltage divider that monitors battery voltage
Additional capabilities added by the Tenstar ProMicro and nRF52840
- Additional GPIOs I can solder to (5 digital, one analog)
- LiPo battery charger on board
- Load switch for all peripherals except motor driver
- USB Input to the nRF52840 (get serial terminal using USB-CDC)
- NFC tag emulation (via the nRF52840 and onboard flex connector)
Parts
155| Qty | Value | Footprint | References |
|---|---|---|---|
| 105 | F.0402.00003/P2-0402R1TS2-045T-001 | easyeda2kicad:LED0402-RD | LEDC1-R1, LEDC1-R2, LEDC1-R3, LEDC1-R4, LEDC1-R5, LEDC1-R6, LEDC1-R7, LEDC1-R8, LEDC1-R9, LEDC1-R10, LEDC1-R11, LEDC1-R12, LEDC1-R13, LEDC1-R14, LEDC1-R15, LEDC2-R1 +89 |
| 6 | CC0402KRX7R7BB104 | easyeda2kicad:C0402 | C3, C8, C9, C10, C11, C12 |
| 6 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1mm | FID1, FID2, FID3, FID4, FID5, FID6 |
| 4 | CL31A107MQHNNNE | easyeda2kicad:C1206 | C4, C5, C6, C7 |
| 3 | RC0402FR-0720KL | easyeda2kicad:R0402 | R3, R4, R5 |
| 2 | CC0603JRNPO8BN561 | easyeda2kicad:C0603 | C13, C14 |
| 2 | L9110S_C5157607 | easyeda2kicad:SOP-8_L4.9-W3.9-P1.27-LS6.0-BL | U4, U7 |
| 2 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2 |
| 2 | RC0402FR-07100KL | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | TS24CA | easyeda2kicad:SW-SMD_TS24CA | SW1, SW2 |
| 1 | 51281-0598 | easyeda2kicad:512810598 | J1 |
| 1 | AUDIO-IN | TestPoint:TestPoint_Pad_D1.0mm | TP8 |
| 1 | CB9 | TestPoint:TestPoint_Pad_D1.0mm | TP9 |
| 1 | CL10B224KA8NNNC | easyeda2kicad:C0603 | C1 |
| 1 | CL21A106KAYNNNE | easyeda2kicad:C0805 | C2 |
| 1 | IS31FL3731-QFLS2-TR | easyeda2kicad:QFN-28_L4.0-W4.0-P0.40-BL-EP | U1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels | JP1 |
| 1 | LIS2DH12TR | easyeda2kicad:LGA-12_L2.0-W2.0-P0.50-BL | U2 |
| 1 | NC1 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1 |
| 1 | NC2 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP3 |
| 1 | NC3 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP4 |
| 1 | NFC1 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP2 |
| 1 | NFC2 | TestPoint:TestPoint_Pad_1.0x1.0mm | TP5 |
| 1 | PZ254R-11-04P | easyeda2kicad:HDR-TH_4P-P2.54-H-M-W10.4 | H3 |
| 1 | RC0402FR-070RL | easyeda2kicad:R0402 | R7 |
| 1 | RC0402FR-07100KL | easyeda2kicad:R0402 | R6 |
| 1 | SWCLK | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP6 |
| 1 | SWDIO | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP7 |
| 1 | TMP102AIDRLR | easyeda2kicad:SOT-563_L1.6-W1.2-P0.50-LS1.6-BR | U5 |
| 1 | Tenstar nRF52840 | nrfmicro:pro_micro | U3 |
| 1 | ZX-SH1.0-4PWT | easyeda2kicad:CONN-SMD_4P-P1.00_MEGASTAR_ZX-SH1.0-4PWT | P6 |
Questions
How big is the Tikk hw PCB?
It measures 18.1 × 39 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Tikk hw use?
155 parts, built around the IS31FL3731-QFLS2-TR, TMP102AIDRLR(UMW), F.0402.00003/P2-0402R1TS2-045T-001 and CC0402KRX7R7BB104. 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 Tikk hw KiCad files?
From the golioth/tikk-hw repository on GitHub, at the commit this page was made from: the board is tikk-hw.kicad_pcb and its schematic tikk-hw.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tikk hw 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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