2 layers34.1 × 52.7 mm
Power supply v1
GildardoRestrepo/course_electronics_design
Repositorio de actividades entregables del curso de diseño electrónico. UPB 2026-02
18 parts1MIT
4 layers50 × 30 mm
Datalogger v1
GildardoRestrepo/course_electronics_design1Repositorio de actividades entregables del curso de diseño electrónico. UPB 2026-02
- Size
- 50 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 26
- Pads
- 128
- Tracks, vias
- 192, 69
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 19 Aug 2026
- Updated
- 7 Nov 2026
Overview
Datalogger v1 is an open-source printed circuit board by GildardoRestrepo, from the GildardoRestrepo/course_electronics_design repository on GitHub, published under the MIT licence. It is a 4-layer board of 50 × 30 mm with 35 parts on 26 nets, routed with 192 tracks and 69 vias.
It is built around the ATMEGA328P-AU, 24LC1025-I/P and DS1337S+T&R. Its parts include 11 capacitors, 7 resistors, 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
README
README.mdDiseño Electrónico — UPB
Este repositorio reúne todas las actividades del curso Diseño Electrónico (UPB). El curso combina una parte teórica sobre inteligencia artificial y una parte práctica sobre IoT, sistemas embebidos y diseño electrónico: firmware para ESP32, servidores MQTT, dashboards y diseño de PCB en KiCad.
Autor: Gildardo Estevan Restrepo Duque
Actividades
| # | Actividad | Carpeta | Bitácora |
|---|---|---|---|
| 01 | Conexión a Ubidots | 01_ubidots_connection | 01_ubidots_connection.md |
| 02 | Suscripción a Ubidots (downlinks) | 02_ubidots_subscription | 02_ubidots_subscription.md |
| 03 | Access Point + servidor web | 03_webserver_accesspoint | 03_webserver_accesspoint.md |
| 04 | Repositorio de entregables | — | 04_repositorio_entregables.md |
| 05 | MQTT local: Mosquitto + Node-RED | 05_mqtt_local_nodered | 05_mqtt_local_nodered.md |
| 06 | MQTT en la nube: AWS + Mosquitto + Node-RED | 06_mqtt_in_aws | 06_mqtt_in_aws.md |
| 08 | Introducción al flujo de trabajo en KiCad | 08_kicad_flow_work | 08_kicad_flow_work.md |
| 09 | Fuente de poder en KiCad | 09_power_supply | 09_power_supply.md |
| 10 | Diseño en 4 capas: datalogger ATmega328P | 10_4layer_design | 10_4layer_design.md |
Cada bitácora de 00_docs/ explica el objetivo, el montaje y cómo reproducir la práctica. Los valores reales de Wi-Fi, tokens y contraseñas no se versionan: cada proyecto trae un archivo de ejemplo (secrets.h.example) o marcadores para completar localmente.
La carpeta .claude/skills/kicad-flow contiene el flujo de trabajo para diseñar y verificar los proyectos de KiCad con Claude Code.
Licencia
MIT. Ver LICENSE.
Enlaces
[[diseno_electronico_iot|Diseño Electrónico IoT]]
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C6, C7, C8, C10, C11 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R2, R5 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 24LC1025 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3, U4 |
| 2 | 330 | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R6, R7 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 16MHz | Crystal:Crystal_SMD_HC49-SD | Y2 |
| 1 | 32.768kHz 6pF | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | ATmega328P-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U2 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | BT1 |
| 1 | DS1337S | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | E/S | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J4 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J1 |
| 1 | ICSP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | UART | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J3 |
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Questions
How big is the Datalogger v1 PCB?
It measures 50 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Datalogger v1 use?
35 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 Datalogger v1 KiCad files?
From the GildardoRestrepo/course_electronics_design repository on GitHub, at the commit this page was made from: the board is 10_4layer_design/4layer_kicad/datalogger_v1.kicad_pcb and its schematic 08_kicad_flow_work/led_circuit_kicad/led_circuit_v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Datalogger v1 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).