Modular development board
About the Modular development board
Modular development board is an open source AVR/Arduino PCB design by ElektroNeo, published on GitHub. It is a 2-layer board measuring 79 × 79 mm, with 54 components from 41 distinct parts.
Its main chip is the ATmega328P-AU, from the AVR/Arduino family. Other key parts include the AMS1117-5.0, AMS1117-3.3, CH340G and DHT11. By type, the board carries 14 connectors, 11 capacitors, 11 resistors, 6 diodes, 5 ICs and 2 transistors.
It belongs with the sensors and dev boards & breakouts designs in this gallery.
From the project
:recycle: :zap: Arduino based Modular Development Board. Breakable and reusable modules in one board.
It has 4 breakable module; - Humidity - Temperature Sensor and LED Module - Light Sensor and Buzzer Module - Power Module - TTL to UART Converter Module
Main components on the Modular development board
Modular development board bill of materials (BOM)
54 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATmega328P-AU | TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | AMS1117-5.0 | SOT-223-3_TabPin2 | U2 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U3 |
| 1 | CH340G | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | DHT11 | Aosong_DHT11_5.5x12.0_P2.54mm | U5 |
| 1 | ALS-PT19-315C | D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | Q1 |
| 1 | 2N2222 | SOT-23_Handsoldering | Q2 |
| 1 | 16MHz | Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 1 | 12MHz | Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y2 |
| 1 | Power In | BarrelJack_Horizontal | J1 |
| 1 | 5V Out | PinSocket_1x03_P2.54mm_Vertical | J2 |
| 1 | 3V3 Out | PinSocket_1x03_P2.54mm_Vertical | J3 |
| 1 | GND | PinSocket_1x03_P2.54mm_Vertical | J4 |
| 1 | Digital 1 | PinSocket_1x08_P2.54mm_Vertical | J5 |
| 1 | Digital 2 | PinSocket_1x07_P2.54mm_Vertical | J6 |
| 1 | Analog | PinSocket_1x08_P2.54mm_Vertical | J7 |
| 1 | Power | PinSocket_1x05_P2.54mm_Vertical | J8 |
| 1 | ICSP | PinHeader_2x03_P2.54mm_Vertical | J9 |
| 1 | DHT11-LEDS | PinSocket_1x06_P2.54mm_Vertical | J10 |
| 1 | Buzzzer-Light | PinSocket_1x04_P2.54mm_Vertical | J11 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USB_B_Micro | KLS1-233-Micro-USB | J12 |
| 1 | UART | PinHeader_1x04_P2.54mm_Vertical | J13 |
| 1 | Power In | PinSocket_1x02_P2.54mm_Vertical | J14 |
| 1 | Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | FSMD200-242920-R | Fuse_2920_7451Metric_Pad2.10x5.45mm_HandSolder | F1 |
| 1 | RESET | SW_SPST_CK_RS282G05A3 | SW1 |
| 1 | CDBA240LL-G | D_SMA_Handsoldering | D1 |
| 2 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2, D3 |
| 1 | GREEN | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D4 |
| 1 | YELLOW | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5 |
| 1 | RED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6 |
| 3 | 100nF 50V | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C4 |
| 1 | 4.7uF 10V | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | 22uF 25V | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C5 |
| 2 | 10uF 10V | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C7 |
| 2 | 10nF 50V | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8, C9 |
| 2 | 18pF | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10, C11 |
| 4 | 1k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R6 |
| 2 | 22 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R5 |
| 3 | 330 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R7, R8, R9 |
| 2 | 4k7 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10, R11 |
Modular development board design files
The KiCad project lives in the ElektroNeo/Modular-Development-Board repository on GitHub; these links point at the commit this page was built from.
Modular development board: common questions
What microcontroller does the Modular development board use?
The Modular development board is built around the ATmega328P-AU, from the AVR/Arduino family.
How big is the Modular development board?
The Modular development board measures 79 × 79 mm, has 2 copper layers and is 1 mm thick.
How many components are on the Modular development board?
54 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the Modular development board design files?
From the ElektroNeo/Modular-Development-Board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Modular development board design in my own project?
The repository has no license, so all rights stay with ElektroNeo. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Modular development board 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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