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Arduino relay

bhaskar9980·Guardian·PCB_designs/KiCad_PCB_design/Arduino_Relay/Arduino_relay.kicad_pcb

Arduino relay PCB layout, top view — open source AVR/Arduino board by bhaskar9980

About the Arduino relay PCB

Arduino relay is an open source AVR/Arduino PCB design by bhaskar9980, published on GitHub under the MIT license. It is a 2-layer board measuring 128 × 47.4 mm, with 58 components from 19 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the SFH617A-1. By type, the board carries 18 resistors, 12 test points, 11 connectors, 4 ICs, 4 transistors and 4 relays.

It belongs with the sensors and displays & leds designs in this gallery.

From the project

Guardian is an advanced, fully automated hydroponics system designed to optimize plant growth and maximize yield. Utilizing micro-controllers and pH fuzzy logic control, it ensures precise nutrient delivery, enables remote monitoring, and achieves remarkable water savings while increasing crop productivity.

There are two Modes for Controlling the Motors and lighting

We can Manually Control/ Automate the Threshold Values of Humidity and Temperature as per the crop

This Arduino compatible library is made to simplify the communication paradigm that happens between master ESP32 and slave Arduino Nano.

The slave arduino nano does the following: - controls 4 relays named as

Arduino relay, from the project README
From the project README

Main components on the Arduino relay

SFH617A-1Arduino_Nano_v3.x

Arduino relay bill of materials (BOM)

58 components, 19 distinct parts.

QtyPartRefs
4
SFH617A-1
U4, U5, U6, U7
1
Arduino_Nano_v3.x
A1
4
BC547
Q1, Q2, Q3, Q4
1
Mains_Power
J1
1
Plant_Motor
J2
1
Mist_Motor
J3
1
Bucket_Motor
J4
1
Lights
J5
1
Sensor_2
J6
1
Sensor_1
J7
1
DHT11
J10
1
LED_A
J11
1
LED_K
J12
1
I2C_LCD
J15
4
FINDER-36.11
K1, K2, K3, K4
12
5V
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +4
4
1N4007
D1, D2, D3, D4
12
1k
R1, R2, R3, R4, R5, R6, R7, R8 +4
6
47k
R11, R12, R13, R14, R15, R16

Arduino relay design files

The KiCad project lives in the bhaskar9980/Guardian repository on GitHub; these links point at the commit this page was built from.

Arduino relay: common questions

What microcontroller does the Arduino relay use?

The Arduino relay is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Arduino relay PCB?

The Arduino relay measures 128 × 47.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Arduino relay?

58 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Arduino relay design files?

From the bhaskar9980/Guardian repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Arduino relay design in my own project?

Yes, under the terms of its MIT license, which bhaskar9980 chose for the repository.

Can I test firmware for the Arduino relay 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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