HardLabs

${project name}

mhered·KiCAD_udemy_course·projects/04_MCU_datalogger/MCU_datalogger.kicad_pcb

${project name}

About the ${project name} PCB

${project name} is an open source AVR/Arduino PCB design by mhered, published on GitHub. It is a 2-layer board, with 24 components from 17 distinct parts.

Its main chip is the MLX90393ELW-ABA-012-SP, from the AVR/Arduino family. Other key parts include the MLX90393ELW-ABA-011-SP. By type, the board carries 7 resistors, 5 capacitors, 4 ICs, 4 connectors, 2 crystals and 2 diodes.

It belongs with the sensors, power & battery and usb & debug tools designs in this gallery.

From the project

My notes on the course "PCB design with KiCAD - updated for KiCAD 9" by Dr Peter Dalmaris in Udemy

A simple microcontroller-based datalogger designed to practice PCB design in KiCAD while introducing the fundamentals of embedded data acquisition. The board reads sensor data through the MCU and stores it in EEPROM, making it possible to log measurements over time.

The design covers the key building blocks of a typical datalogger system:

- MCU (microcontroller) – handles sensor interfacing, data collection, and storage management. ATMEGA328P-AU (downloaded from SNAPEDA) - DS1337S - Real-time clock - Sensors / Inputs – generic sensor connections to capture physical measurements. - EEPROM –…

Main components on the ${project name}

MLX90393ELW-ABA-011-SPMLX90393ELW-ABA-012-SP

${project name} bill of materials (BOM)

24 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MLX90393ELW-ABA-011-SP
24LC1025
Melexis
U1
1
MLX90393ELW-ABA-012-SP
DS1337S_
Melexis
U2
1
MLX90393ELW-ABA-012-SP
24LC1025
Melexis
U3
1
MLX90393ELW-ABA-012-SP
ATMEGA328P-AU
Melexis
U4
1
32.768KHz
Y1
1
16MHz
Y2
2
Conn_01x04_Pin
JST Sales American Inc
J1, J3
1
Conn_01x09_Pin
J2
1
Conn_02x03_Odd_Even
J4
2
LED
D1, D2
3
CC0402JRX7R7BB104
0.1μF
Yageo
C1, C4, C5
2
CC0402JRX7R7BB104
22pF
Yageo
C2, C3
1
RC0402FR-074K7L
10KΩ
Yageo
R1
1
RC0402FR-074K7L
4.7kΩ
Yageo
R2
2
10KΩ
R3, R6
1
4.7kΩ
R4
2
330Ω
R5, R7

${project name} design files

The KiCad project lives in the mhered/KiCAD_udemy_course repository on GitHub; these links point at the commit this page was built from.

${project name}: common questions

What microcontroller does the ${project name} use?

The ${project name} is built around the MLX90393ELW-ABA-012-SP, from the AVR/Arduino family.

How big is the ${project name} PCB?

The ${project name} has 2 copper layers and is 1.6 mm thick.

How many components are on the ${project name}?

24 components, from 17 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ${project name} design files?

From the mhered/KiCAD_udemy_course repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the ${project name} design in my own project?

The repository has no license, so all rights stay with mhered. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ${project name} without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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