Solar Powered Irrigation System
About the Solar Powered Irrigation System PCB
Solar Powered Irrigation System is an open source ESP32 PCB design by jsitech4, published on GitHub. It is a 2-layer board measuring 91.6 × 57.8 mm, with 70 components from 59 distinct parts.
Its main chip is the LM2596S-12V, from the ESP32 family. Other key parts include the LM2596S-3.3V, ESP32-WROOM, LM2596S-5V and AMS1117-3.3. By type, the board carries 22 capacitors, 15 resistors, 8 connectors, 8 diodes, 5 ICs and 3 transistors.
It belongs with the power & battery, displays & leds and sensors designs in this gallery.
From the project
This project is a Solar Powered Smart Irrigation System built around the ESP32 microcontroller. The system is designed to automatically manage water pumping for an overhead tank and irrigation sprinkler without requiring constant manual control.
This project is a Solar Powered Smart Irrigation System built around the ESP32 microcontroller. The system is designed to automatically manage water pumping for an overhead tank and irrigation sprinkler without requiring constant manual control.
The system uses an ultrasonic sensor to monitor the water level inside the overhead tank, a soil moisture sensor to determine when irrigation is needed, battery and solar voltage sensing for power monitoring, and a rotary encoder for setup and calibration.
Main components on the Solar Powered Irrigation System
Solar Powered Irrigation System bill of materials (BOM)
70 components, 59 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM2596S-3.3V AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | LM2596S-12V ESP32-WROOM | ESP32-WROOM-32U | U2 |
| 1 | ESP32-WROOM LM2596S-3.3V | TO-263-5_TabPin6 | U3 |
| 1 | LM2596S-5V LM2596S-3.3V | TO-263-5_TabPin6 | U4 |
| 1 | AMS1117-3.3 CH340C | SOIC-16_3.9x9.9mm_P1.27mm | U5 |
| 2 | UMH3N IRLML6344 | SOT-23_Handsoldering | Q1, Q2 |
| 1 | ULN2803ADWR UMH3N | SOT-363_SC-70-6 | Q3 |
| 1 | 12MHZ 12MHz | Crystal_HC49-4H_Vertical | Y1 |
| 1 | PUMP | TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal | J1 |
| 1 | SOIL SENSOR | PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | AM2301A | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | OLED SCREEN | PinSocket_1x04_P2.54mm_Vertical | J4 |
| 1 | Ultra Sonic | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | USB_C Conn | PinHeader_1x04_P2.54mm_Vertical | J7 |
| 1 | INPUT | TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J11 |
| 1 | BSEN | TestPoint_Keystone_5015_Micro_Mini | J15 |
| 1 | Buzzer | Buzzer_15x7.5RM7.6 | BZ1 |
| 1 | ~ | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | PC817XFP PC817XI | DIP-4_W7.62mm_SMDSocket_SmallPads | OC1 |
| 1 | RotaryEncoder | PinHeader_1x06_P2.54mm_Vertical | SW1 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SPST_CK_KXT3 RESET | SW_SPST_CK_KXT3 | SW2 |
| 1 | SPST_CK_KXT3 FLASH | SW_SPST_CK_KXT3 | SW3 |
| 1 | 3.3V | D_SOD-123 | D1 |
| 1 | 1N5824 1N5819 | D_SMA | D2 |
| 1 | 1N5824 Red | LED_D3.0mm | D3 |
| 1 | 1N5819 | D_SMA | D4 |
| 1 | SM4001 Red | LED_D3.0mm | D5 |
| 1 | SM4001 Green | LED_D3.0mm | D6 |
| 1 | SM4001 1N5824 | D_SMA | D7 |
| 1 | 1N5824 | D_SMA | D8 |
| 2 | 33UH 33uH | L_12x12mm_H6mm | L1, L2 |
| 2 | 680UF/35V 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 1 | 470NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 3 | 100NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C18, C22 |
| 3 | 220UF/16V 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6, C11 |
| 1 | 680UF/35V 4.7uF/16V | CP_EIA-3528-21_Kemet-B_HandSolder | C7 |
| 1 | 10uF_16V | CP_Radial_D5.0mm_P2.00mm | C8 |
| 1 | 2200UF/35V 470nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 2200UF/35V 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 100NF 4.7uF/16V | CP_EIA-3528-21_Kemet-B_HandSolder | C12 |
| 1 | 100NF 680uF_35V | CP_Elec_10x12.5 | C13 |
| 1 | 470UF/25V 680uF_35V | CP_Elec_10x12.5 | C14 |
| 1 | 4.7UF/16V 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15 |
| 1 | 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16 |
| 1 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17 |
| 1 | 4.7UF/16V 220uF_16V | CP_Elec_6.3x7.7 | C19 |
| 1 | 22PF 220uF_16V | CP_Elec_6.3x7.7 | C20 |
| 1 | 22PF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C21 |
| 2 | 680K 10k | R_0805_2012Metric | R1, R2 |
| 1 | 100K 10k | R_0805_2012Metric | R3 |
| 2 | 10k | R_0805_2012Metric | R4, R5 |
| 1 | 330R 20k | R_0805_2012Metric | R6 |
| 1 | 680K 1k | R_0805_2012Metric | R7 |
| 1 | 2k | R_0805_2012Metric | R8 |
| 2 | 330R 10k | R_0805_2012Metric | R9, R11 |
| 2 | 10K 330R | R_0805_2012Metric | R10, R12 |
| 1 | 330R | R_0805_2012Metric | R13 |
| 1 | 330R/2W 10k | R_0805_2012Metric | R14 |
| 1 | 10K 10k | R_0805_2012Metric | R15 |
Solar Powered Irrigation System design files
The KiCad project lives in the jsitech4/Projects repository on GitHub; these links point at the commit this page was built from.
- LayoutESP32/Solar_Powered_Irrigation_System/hardware/Solar_Powered_Irrigation_System.kicad_pcb
- SchematicESP32/Solar_Powered_Irrigation_System/hardware/Solar_Powered_Irrigation_System.kicad_sch
- BOMESP32/Smart_Hybrid_IOT_energy_management_System/production/bom/Smart_Hybrid_IOT_energy_management_System_BOM.xlsx
Solar Powered Irrigation System: common questions
What microcontroller does the Solar Powered Irrigation System use?
The Solar Powered Irrigation System is built around the LM2596S-12V, from the ESP32 family.
How big is the Solar Powered Irrigation System PCB?
The Solar Powered Irrigation System measures 91.6 × 57.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Solar Powered Irrigation System?
70 components, from 59 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 Solar Powered Irrigation System design files?
From the jsitech4/Projects 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 Solar Powered Irrigation System design in my own project?
The repository has no license, so all rights stay with jsitech4. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Solar Powered Irrigation System without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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