4 layers70 × 50 mm
Timekeeper
liam-tirpitz/TickTock
A custom ESP32-based clock platform driving WS2812B/NeoPixel LED displays. Firmware and PCB are display-agnostic, supporting any addressable LED clock with minimal adjustments.
57 parts
2 layers112 × 79 mm
Macropad
dbozec/macropad1Custom wireless macropad
- Size
- 112 × 79 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 94
- Nets
- 83
- Pads
- 410
- Tracks, vias
- 630, 82
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 25 Oct 2023
- Updated
- 26 Oct 2023
Overview
Macropad is an open-source printed circuit board by dbozec, from the dbozec/macropad repository on GitHub. It is a 2-layer board of 112 × 79 mm with 94 parts on 83 nets, routed with 630 tracks and 82 vias.
It is built around the CH340C, ESP32-WROOM-32 and AP2112K-3.3, with the MCP73831, MMSD4148 and BC817 among its other parts. Its parts include 19 diodes, 19 switches, 16 resistors, 10 capacitors and 4 ICs. It belongs with the keyboards and input boards and the ESP32 boards of this library.
Main components
7
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
MCP73831
UncategorisedMicrochip Technology
MMSD4148
SOD-123-55℃~+150℃@(Tj) 100V 1V@10mA 200mA 425mW 4ns 5uA@75V Independent SOD-123 Switching Diodes ROHSonsemiSwitching Diodes
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)DMG2307L
SOT-23-55℃~+150℃ 1 P-Channel 1.36W 134mΩ@4.5V 3.8A 30V 371.3pF 3V 45.9pF 51.3pF 8.2nC@10V P-Channel SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.mdMacropad
This is a custom macropad with 4x4 keys and a rotary knob.
I wanted it to be wireless so it is built arround an ESP32 module with Bluetooth.
It is built to be used with Kailh Choc keyswitches to have a lower profile than classical mechanical switches.
Shortly after I started to work on this project, the folks from DeepSea-Developments announced their own work on the DeepDeck macropad. So I benefit from their work to design my own macropad.
I also switched from other existing firmwares I was trying to their work on the DeepDeck firmware
Warnings
My work is distributed in the home it can be useful, but WITHOUT ANY WARRANTY
This product is meant to be used with battery, but v1.0 has never be tested in battery power mode right now, so take care of what you do.
Thanks
- To DeepSea-Developments, creators of the DeepDeck macropad for their work.
- To Yannick Hemery, for taking time to fine tune the DeepDeck firmware to fit my hardware design.
Parts
94| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | Keyswitch | Button_Switch_Keyboard_Perso:PG1350_optional-socket | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 16 | MMSD4148 | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C9, C10 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R9, R10, R11 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP5 |
| 3 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R13, R14 |
| 2 | 1µF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C5 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R12 |
| 2 | 3k3 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15, R16 |
| 2 | 4.7µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7, C8 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | DMG2307L | Package_TO_SOT_SMD:SOT-23 | Q1, Q4 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 1A/23V/620mV | Diode_SMD:D_SOD-523 | D18 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Batt | Connector_JST:JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J2 |
| 1 | Blue | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D20 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | Charging | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D19 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U3 |
| 1 | FerriteBead | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1 |
| 1 | G*** | kibuzzard-6351268B | kibuzzard-6351268B |
| 1 | G*** | kibuzzard-63541E8A | kibuzzard-63541E8A |
| 1 | G*** | kibuzzard-63512654 | kibuzzard-63512654 |
| 1 | G*** | kibuzzard-63512619 | kibuzzard-63512619 |
| 1 | G*** | kibuzzard-635127E0 | kibuzzard-635127E0 |
| 1 | G*** | kibuzzard-63512665 | kibuzzard-63512665 |
| 1 | I²C | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J3 |
| 1 | LOGO | Symbol_Perso:logo_db_10mm | G*** |
| 1 | MCP73831 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | On-Off | Switch_SMD_Perso:SW_SPDT_Slide_Mini_Wurth_450404015514 | SW18 |
| 1 | Reset | Switch_SMD_Perso:SW_Tact_5x5mm_Wurth_431183015816 | SW19 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder_Perso:RotaryEncoder_Bourns_PEC11S-929K-Switch_Vertical | SW17 |
| 1 | TestPoint | TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP6 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB_Perso:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | locked |
The 92 most common of 94 parts.
Questions
How big is the Macropad PCB?
It measures 112 × 79 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Macropad use?
94 parts, built around the CH340C, ESP32-WROOM-32, AP2112K-3.3 and MCP73831. 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 Macropad KiCad files?
From the dbozec/macropad repository on GitHub, at the commit this page was made from: the board is ECAD/macroPad.kicad_pcb and its schematic ECAD/macroPad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Macropad design in my own project?
Its repository states no licence, so its author keeps all rights: ask dbozec before reusing the design.
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