MatrixClock
About the MatrixClock PCB
MatrixClock is an open source ESP8266 PCB design by middelink, published on GitHub under the MIT license. It is a 2-layer board measuring 160 × 32 mm, with 66 components from 22 distinct parts.
Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the LD1117S33TR, BH1750FVI-TR, APDS-9301, BME280 and BME680. By type, the board carries 11 resistors, 10 capacitors, 6 ICs, 5 modules, 5 connectors and 1 transistor.
It belongs with the sensors and displays & leds designs in this gallery.
From the project
MatrixClock - source code, schematics and pcb layout
MatrixClock is both a hardware and software project to create an extensible 40x8 dot matrix display with some sensors attached because, uhm. I could?
Here you will find the both the schematics, pcb layout and source code of my MatrixClock project.
Based on generaly available red 8x8 dot matrix displays with MAX7219. E.g. on eBay (the red one, with the yellow headers). Full source code (arduino, platformio) Full schematics, PCB layout and gerbers (kicad) ESP-12E/F module for driving display and ntp time keeping. USB powered User defined button Light sensor: APDS9301 and/or BH1750FVI…
Main components on the MatrixClock
MatrixClock bill of materials (BOM)
66 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LD1117S33TR | SOT-223-3Lead_TabPin2 | U1 |
| 1 | ESP-12E | ESP-12E_SMD | U2 |
| 1 | BH1750FVI-TR | WSOF6 | U3 |
| 1 | APDS-9301 | APDS9301 | U4 |
| 1 | BME280 | BME280 | U5 |
| 1 | BME680 | BME680 | U6 |
| 5 | Module_MAX7219 | Module_MAX7219 | M1, M2, M3, M4, M5 |
| 1 | PNP | SOT-23 | Q1 |
| 1 | USB_OTG | USB_Micro-B_Vertical_Molex-105133-0001 | J1 |
| 1 | CONN_01X06 | Pin_Header_Straight_1x06_Pitch2.54mm | J2 |
| 2 | CONN_01X05 | Pin_Header_Straight_1x05_Pitch2.54mm | J3, J4 |
| 1 | DISP_PWR | SOLDER-JUMPER_2-WAY | J5 |
| 1 | SW_Push | SW_SPST_PTS645 | SW1 |
| 26 | VIA-6mm | VIA-6mm | VIA01, VIA02, VIA03, VIA04, VIA05, VIA06, VIA07, VIA08 +18 |
| 1 | 1N4148 | D_SOD-123 | D1 |
| 8 | 100nF | C_0805 | C1, C2, C3, C4, C5, C8, C9, C10 |
| 1 | 10uF | CP_Elec_3x5.3 | C6 |
| 1 | 100uF | CP_Elec_6.3x5.7 | C7 |
| 2 | 100K | R_0805_HandSoldering | R1, R2 |
| 7 | 10K | R_0805_HandSoldering | R3, R4, R5, R6, R7, R8, R9 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4K7 | R_0805_HandSoldering | R10 |
| 1 | 1K | R_0805_HandSoldering | R11 |
MatrixClock design files
The KiCad project lives in the middelink/MatrixClock repository on GitHub; these links point at the commit this page was built from.
MatrixClock: common questions
What microcontroller does the MatrixClock use?
The MatrixClock is built around the ESP-12E, from the ESP8266 family.
How big is the MatrixClock PCB?
The MatrixClock measures 160 × 32 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MatrixClock?
66 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the MatrixClock design files?
From the middelink/MatrixClock repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MatrixClock design in my own project?
Yes, under the terms of its MIT license, which middelink chose for the repository.
Can I test firmware for the MatrixClock without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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