Irrigator
peterbudai·irrigator·hardware/IrriGator.kicad_pcb
About the Irrigator PCB
Irrigator is an open source ESP32 PCB design by peterbudai, published on GitHub under the MIT license. It is a 2-layer board measuring 66 × 106.7 mm, with 45 components from 27 distinct parts.
Its main chip is the ESP-01v090, from the ESP32 family. Other key parts include the ATtiny45-20P and DS3231-MINI-RTC. By type, the board carries 13 resistors, 9 connectors, 8 capacitors, 5 diodes, 4 ICs and 2 fuses.
It belongs with the iot & wireless designs in this gallery.
From the project
Simple WiFi-enabled garden irrigation controller hardware

Main components on the Irrigator
Irrigator bill of materials (BOM)
45 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP-01v090 | ESP-01 | U1 |
| 2 | ATtiny45-20P | DIP-8_W7.62mm_Socket | U2, U4 |
| 1 | DS3231-MINI-RTC | DS3231-MINI-RTC | U3 |
| 1 | L | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1 |
| 1 | N | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | 230VAC | TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J3 |
| 1 | 36VDC | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J4 |
| 1 | 3V3 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J5 |
| 2 | Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J6, J7 |
| 1 | Conn_01x02_Socket | PinSocket_1x02_P2.54mm_Vertical | J8 |
| 1 | Conn_01x04_Socket | SolderWire-0.1sqmm_1x04_P3.6mm_D0.4mm_OD1mm | J9 |
| 1 | 100mA | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | 630mA | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F2 |
| 1 | SW_Push | SW_PUSH-12mm | SW1 |
| 1 | 24V 16VA | MYRRA 44306 PCB Transformer 1x24V 16VA 230V | T1 |
| 2 | 33R 2.5A | RV_Disc_D15.5mm_W6.8mm_P7.5mm | TH1, TH2 |
| 4 | 1N4007 | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4 |
| 1 | OS-RBMC 5B31A | LED_D5.0mm-3 | D5 |
| 1 | 1000u | CP_Radial_D16.0mm_P7.50mm | C1 |
| 1 | 100u | CP_Radial_D5.0mm_P2.50mm | C2 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 10u | CP_Radial_D5.0mm_P2.50mm | C3, C5, C7 |
| 2 | 100n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C4, C8 |
| 1 | 1000u | CP_Radial_D10.0mm_P5.00mm | C6 |
| 9 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R5, R6, R7, R8, R11, R12 +1 |
| 2 | 4.7k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R4 |
| 1 | 100 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9 |
| 1 | 47 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R10 |
Irrigator design files
The KiCad project lives in the peterbudai/irrigator repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/IrriGator.kicad_pcb
- Schematichardware/IrriGator.kicad_sch
Irrigator: common questions
What microcontroller does the Irrigator use?
The Irrigator is built around the ESP-01v090, from the ESP32 family.
How big is the Irrigator PCB?
The Irrigator measures 66 × 106.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Irrigator?
45 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Irrigator design files?
From the peterbudai/irrigator repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Irrigator design in my own project?
Yes, under the terms of its MIT license, which peterbudai chose for the repository.
Can I test firmware for the Irrigator 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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