2 layers59.6 × 55.9 mm
4 layers
Button transmitter revb
twfth9/CW-Tracker- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 54
- Nets
- 49
- Pads
- 168
- Tracks, vias
- 5, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 24 Mar 2024
- Updated
- 27 Oct 2025
Overview
Button transmitter revb is an open-source printed circuit board by twfth9, from the twfth9/CW-Tracker repository on GitHub. It is a 4-layer board with 54 parts on 49 nets, routed with 5 tracks and 0 vias.
It is built around the ATTINY416-MN, MIC2288YML-TR and SI5351B-B-GM1, with the CR2032 among its other parts. Its parts include 19 resistors, 15 capacitors, 5 ICs, 3 diodes and 3 inductors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY416-MN
QFN-20-EP(3x3)-40℃~+105℃ 1.8V~5.5V 10bit 128Byte 18 20MHz 256Byte 4KB 8 Bit 8bit AVR Built-in FLASH QFN-20-EP(3x3) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MIC2288YML-TR
TDFN-8L-EP(2x2)-40℃~+125℃ 1 1.05MHz~1.35MHz 1.24V~34V 1.2A 2.5V~10V 2.8mA Adjustable Boost Boost Built-in No Overcurrent Protection TDFN-8L-EP(2x2) DC-DC Converters ROHSMicrochip TechnologyDC-DC Converters
SI5351B-B-GM1
QFN-16(3x3)QFN-16(3x3) Clock Generators, PLLs, Frequency Synthesizers ROHSSkyworks SolutionsClock Generators / Frequency Synthesizers / PLL
CR2032
-- Unclassified goods ROHSMaxellUncategorised
Parts
54| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Library:Worthington_C_0402 | C102, C103, C104, C108, C111, C112, C113, C114 |
| 3 | 1k | Library:Worthington_R_0402 | R105, R114, R115 |
| 2 | 10 | Library:Worthington_R_0402 | R107, R108 |
| 2 | 1M | Library:Worthington_R_0402 | R106, R109 |
| 2 | 1uF | Library:Worthington_C_0402 | C107, C109 |
| 2 | 22uF | Library:Worthington_C_0603 | C105, C106 |
| 1 | 0R | Library:Worthington_R_0402 | R104 |
| 1 | 1.27mm Pogo Pads For Programming & Debug | Library:2x3_1.27mm_Pogo_Header | J101 |
| 1 | 100mH | Inductor_THT:L_Axial_L12.0mm_D5.0mm_P15.24mm_Horizontal_Fastron_MISC | L101 |
| 1 | 107k | Library:Worthington_R_0402 | R117 |
| 1 | 10uF | Library:Worthington_C_0603 | C101 |
| 1 | 10uH | Library:Worthington_L_0603 | L102 |
| 1 | 127k | Library:Worthington_R_0402 | R118 |
| 1 | 15k | Library:Worthington_R_0603 | R102 |
| 1 | 15k | Library:Worthington_R_0402 | R101 |
| 1 | 200k | Library:Worthington_R_0402 | R116 |
| 1 | 220pF | Library:Worthington_C_0402 | C115 |
| 1 | 25MHz | Library:Crystal_SMD_Kyocera_CX3225SB-4Pin_3.2x2.5mm | Y101 |
| 1 | 2k2 | Library:Worthington_R_0402 | R112 |
| 1 | 3M | Library:Worthington_R_0402 | R111 |
| 1 | 402k | Library:Worthington_R_0402 | R113 |
| 1 | 47uF | Library:Worthington_CTant_2917 | C110 |
| 1 | 4u7H | Library:Worthington_L_0603 | L103 |
| 1 | 500 | Library:Worthington_R_0402 | R110 |
| 1 | 5k | Library:Worthington_R_0402 | R119 |
| 1 | 600 | Library:Worthington_R_0402 | R103 |
| 1 | 7BB-20-3 | Library:Buzzer_Pad_POS | BZ101 |
| 1 | 7BB-20-3 | Library:Buzzer_Pad_NEG | BZ102 |
| 1 | ATtiny416-M | Package_DFN_QFN:VQFN-20-1EP_3x3mm_P0.4mm_EP1.7x1.7mm | U102 |
| 1 | Antenna Spring | Library:RF_Solder_Pad | J102 |
| 1 | CR2032 | Battery:BatteryHolder_Keystone_3034_1x20mm | BT101 |
| 1 | Case | Library:Case_CR2032 | U103 |
| 1 | DMN601TK-7 | Package_TO_SOT_SMD:SOT-523 | Q101 |
| 1 | D_Schottky | Diode_SMD:D_SOD-523 | D103 |
| 1 | GREEN | Library:Worthington_LED_0402_1005Metric | D102 |
| 1 | LOGO | Library:Logo_10mm_inv | G*** |
| 1 | LOGO | Library:IPL_Logo_3mm | G*** |
| 1 | MIC2288YML | Package_DFN_QFN:WDFN-8-1EP_2x2mm_P0.5mm_EP0.8x1.2mm | U104 |
| 1 | RED | Library:Worthington_LED_0402_1005Metric | D101 |
| 1 | Si5351B-B-GM1 | Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm | U101 |
| 1 | TPP361081 | Package_TO_SOT_SMD:TSOT-23-6 | U105 |
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Questions
What parts does the Button transmitter revb use?
54 parts, built around the ATTINY416-MN, MIC2288YML-TR, SI5351B-B-GM1 and CR2032. 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 Button transmitter revb KiCad files?
From the twfth9/CW-Tracker repository on GitHub, at the commit this page was made from: the board is Transmitter/KiCAD/Button Transmitter/Prototypes/Si5351B-ATtiny416 Dev B/button_transmitter_revb.kicad_pcb and its schematic Transmitter/KiCAD/220MHz Oscillator/220_MHz_Oscillator.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Button transmitter revb design in my own project?
Its repository states no licence, so its author keeps all rights: ask twfth9 before reusing the design.