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BallValveController

hansrune·BallValveController·KiCad/BallValveController.kicad_pcb

BallValveController PCB layout, top view — open source ESP32 board by hansrune

About the BallValveController PCB

BallValveController is an open source ESP32 PCB design by hansrune, published on GitHub under the Custom license license. It is a 2-layer board measuring 55.6 × 43.2 mm, with 43 components from 23 distinct parts.

Its main chip is the SeedStudio XIAO ESP32 C3 v1, from the ESP32 family. Other key parts include the L7805. By type, the board carries 13 resistors, 11 connectors, 8 diodes, 4 capacitors, 2 ICs and 2 transistors.

It belongs with the iot & wireless, power & battery and sensors designs in this gallery.

From the project

Ball valve controller for irrigation, water automations and leak prevention. Supports CR05 feedback wiring. Based on ESP32c3. ESPEasy and ESPHome based firmware build instructions included

A DYI ball valve controller for CR05 wiring based on ESP32c3. This device is mainly intended for irrigation and main water valve automation, but is also very suitable for water leak prevention. For safety, a battery helps make sure the device returns to its default state upon reset or power failure. The device can be directly controlled to the default state by external signals such as a local water leak sensor, or you can use your home automation system to cut off water supply based on more advanced conditions.

BallValveController, from the project README
From the project README

Main components on the BallValveController

L7805SeedStudio XIAO ESP32 C3 v1

BallValveController bill of materials (BOM)

43 components, 23 distinct parts.

QtyPartRefs
1
L7805
U1
1
SeedStudio XIAO ESP32 C3 v1
U2
1
Q_PMOS_GDS
Q1
1
2N2222A
Q2
1
Screw_Terminal_01x03
J1
3
Screw_Terminal_01x04
J2, J4, J10
1
Screw_Terminal_01x04
J3
5
Conn_01x01_Male
J5, J6, J7, J8, J9
1
Screw_Terminal_01x02
J11
2
SolderJumper_3_Open
JP1, JP2
1
G5V-2
K1
3
1N4007
D1, D4, D8
3
1N4148
D2, D3, D5
2
LED
D6, D7
1
C_Small
C1
3
10uF
C2, C3, C4
1
33k
R1
1
68k
R2
4
10k
R3, R4, R7, R8
4
4.7k
R5, R6, R9, R10
Show 3 more
QtyPartRefs
1
270
R11
1
1k
R12
1
910
R13

BallValveController design files

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

BallValveController: common questions

What microcontroller does the BallValveController use?

The BallValveController is built around the SeedStudio XIAO ESP32 C3 v1, from the ESP32 family.

How big is the BallValveController PCB?

The BallValveController measures 55.6 × 43.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BallValveController?

43 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the BallValveController design files?

From the hansrune/BallValveController repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the BallValveController design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the BallValveController 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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