2 layers58.4 × 44.4 mm
Twilight
harry48225/twilight
An automated roller blind opener. Using an esp32 runing micropython.
27 parts
2 layers56.3 × 55 mm
Hexa switch
mmatthe/hexa-switchThis project is a custom-designed printed circuit board (PCB) for a Tasmota-compatible IoT device based on the ESP32 microcontroller. It allows switching of 6 loads, with each channel capable of handling up to 2 Amps.
- Size
- 56.3 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 50
- Pads
- 156
- Tracks, vias
- 286, 32
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 28 May 2025
- Updated
- 28 May 2025
Overview
Hexa switch is an open-source printed circuit board by mmatthe, from the mmatthe/hexa-switch repository on GitHub. It is a 2-layer board of 56.3 × 55 mm with 49 parts on 50 nets, routed with 286 tracks and 32 vias.
It is built around the ESP32-WROOM-32, TSR 1-2433 and IRLML0030. Its parts include 13 diodes, 9 resistors, 6 transistors, 4 capacitors and 2 ICs. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TSR 1-2433
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 3.3V 300uA 50mVp-p 6V~36V 7.5mm 80%、90% 850kHz Plastic encapsulated type Short Circuit Protection、Automatic fault recovery Step-down type ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
IRLML0030
SOT-23-55℃~+150℃ 1 N-channel 2.3V 2.6nC 27mΩ@10V 30V 382pF 39pF 5.3A SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
README
Readme.mdHexaSwitch - 6-Channel Switch for Tasmota
This project is a custom-designed printed circuit board (PCB) for a Tasmota-compatible IoT device based on the ESP32 microcontroller. It allows switching of 6 loads, with each channel capable of handling up to 2 Amps. The device contains a real-time clock such that the device can also run on an independent time base.
I use it for switching on and off 12V valves for watering plants in the garden. It can also be used to switch relays and contactors to switch larger powers.
Features
- Link to Schematic and BOM
- ESP32-based controller compatible with Tasmota firmware
- 6 independent load switching channels (up to 2A per channel)
- 3 digital inputs
- Supports power input from 5V to 24V
- Optional Real-Time Clock (RTC) connector (not required for operation)
- Custom PCB designed using KiCad
Hardware Details
- Power Supply: 5–24V DC input
- Switching: 6 channels, each capable of switching loads up to 2A
- Inputs: 3 digital inputs
- Microcontroller: ESP32
- Optional RTC interface for time-sensitive automation
Usage
- Assemble the PCB and connect loads to the output channels.
- Flash the ESP32 with Tasmota firmware.
- Power the device with a DC supply between 5V and 24V.
- Use Tasmota’s web interface or MQTT to control each channel independently.
License
This project is released under the MIT License.
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 270 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7 |
| 7 | LED | LED_SMD:LED_0805_2012Metric | LED1, LED2, LED3, LED4, LED5, LED6, LED7 |
| 6 | Conn_01x02_Pin | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | Ch1, Ch2, Ch3, Ch4, Ch5, Ch6 |
| 6 | D | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6 |
| 6 | IRLML0030 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric | C2, C3, C4 |
| 3 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Btn1, Btn2, Btn3 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R8, R9 |
| 1 | 22u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | Conn_01x05 | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | RTC_DS1302 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | IO0 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Boot0 |
| 1 | Reset | footprints:Reichelt 9315 | Reset1 |
| 1 | Reset | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Reset2 |
| 1 | TSR_1-2433 | Converter_DCDC:Converter_DCDC_TRACO_TSR-1_THT | U3 |
| 1 | UART | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | Vin | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | Vin1 |
Questions
How big is the Hexa switch PCB?
It measures 56.3 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hexa switch use?
49 parts, built around the ESP32-WROOM-32, TSR 1-2433 and IRLML0030. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Hexa switch KiCad files?
From the mmatthe/hexa-switch repository on GitHub, at the commit this page was made from: the board is schematic/schematic.kicad_pcb and its schematic schematic/schematic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hexa switch design in my own project?
Its repository states no licence, so its author keeps all rights: ask mmatthe before reusing the design.
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