4 layers51.2 × 34.3 mm
4 layers47.5 × 36.9 mm
MCU DataLogger
graytrace/MCU_DataLoggerPCB
- Size
- 47.5 × 36.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 33
- Pads
- 117
- Tracks, vias
- 241, 37
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Jun 2025
- Updated
- 25 Jun 2025
Overview
MCU DataLogger is an open-source printed circuit board by graytrace, from the graytrace/MCU_DataLogger repository on GitHub. It is a 4-layer board of 47.5 × 36.9 mm with 30 parts on 33 nets, routed with 241 tracks and 37 vias.
It is built around the ATMEGA328P-AN, 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-AN
TQFP-32(7x7)-40℃~+105℃ 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 | 24LC1025 | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3, U4 |
| 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, J2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 0.1Uf | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 16MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y2 |
| 1 | 22pF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 23pF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 32.768Khz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y1 |
| 1 | ATMEGA328P-AN | ATMEGA328P-AN:Atmega328p-AN | U1 |
| 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 | J3 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J4 |
| 1 | DS1337S_ | DS1337S_:DS1337S | U2 |
| 1 | LOGO | Logo:Logo | G*** |
Questions
How big is the MCU DataLogger PCB?
It measures 47.5 × 36.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the MCU DataLogger use?
30 parts, built around the ATMEGA328P-AN, 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 graytrace/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 graytrace before reusing the design.
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