2 layers50.2 × 31.2 mm
MCU Datalogger
futureshocked/KLP4e_MCU-Datalogger
This is the repository for the "MCU Datalogger" project.
31 parts138MIT
4 layers56.2 × 35.9 mm
MCU datalogger
wolfenstein11x/MCU_dataloggerKiCad project
- Size
- 56.2 × 35.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 34
- Pads
- 117
- Tracks, vias
- 298, 47
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Jun 2026
- Updated
- 7 Sep 2026
Overview
MCU datalogger is an open-source printed circuit board by wolfenstein11x, from the wolfenstein11x/MCU_datalogger repository on GitHub. It is a 4-layer board of 56.2 × 35.9 mm with 30 parts on 34 nets, routed with 298 tracks and 47 vias.
It is built around the ATMEGA328P-AU, 24LC1025-I/P and DS1337S+T&R. Its parts include 7 resistors, 5 capacitors, 4 ICs, 4 connectors and 2 diodes. It belongs with the sensors and measurement boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
24LC1025-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM
DS1337S+T&R
SOIC-8-40℃~+85℃ 1.8V~5.5V 100nA 150uA External I2C Programmable clock output、Alarm function Yes SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 3 | 10K | Resistor_SMD:R_0805_2012Metric | R1, R2, R6 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C4 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 24LC1025 | downloaded:SOIC-8_5.23x5.23mm_P1.27mm | U1, U3 |
| 2 | 330 | Resistor_SMD:R_0805_2012Metric | R5, R7 |
| 2 | 4.7K | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J3 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 16 MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y2 |
| 1 | 32.768 KHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y1 |
| 1 | ATMEGA328P-AU | downloaded:QFP80P900X900X120-32N | U4 |
| 1 | Battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | Conn_01x09_Pin | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J2 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J4 |
| 1 | DS1337S_ | downloaded:SOIC127P600X175-8N | U2 |
The 29 most common of 30 parts.
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Questions
How big is the MCU datalogger PCB?
It measures 56.2 × 35.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the MCU datalogger use?
30 parts, built around the ATMEGA328P-AU, 24LC1025-I/P and DS1337S+T&R. 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 MCU datalogger KiCad files?
From the wolfenstein11x/MCU_datalogger repository on GitHub, at the commit this page was made from: the board is MCU_datalogger.kicad_pcb and its schematic MCU_datalogger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MCU datalogger design in my own project?
Its repository states no licence, so its author keeps all rights: ask wolfenstein11x before reusing the design.