2 layers51.9 × 52 mm
2 layers50.8 × 50.8 mm
Esp switch
foxel/esp-dual-rf-switch6LightFox Dual: esp8266 WiFi+RF dual channel switch
- Size
- 50.8 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 27
- Pads
- 97
- Tracks, vias
- 306, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 9 Mar 2018
- Updated
- 26 Jun 2020
Overview
Esp switch is an open-source printed circuit board by foxel, from the foxel/esp-dual-rf-switch repository on GitHub. It is a 2-layer board of 50.8 × 50.8 mm with 29 parts on 27 nets, routed with 306 tracks and 12 vias.
It is built around the ATTINY441-SSU, HLK-PM03 and BT137, with the MOC3041M among its other parts. Its parts include 9 resistors, 5 ICs, 4 diodes, 4 connectors and 1 capacitor. It belongs with the radio and wireless boards and the ESP8266 and AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY441-SSU
SOIC-14-40℃~+85℃ 1.7V~5.5V 10bit 12 16MHz 256Byte 256Byte 4KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Programmable watchdog SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
HLK-PM03
插件0.1W 1 100mVp-p 15mm 1A 20mm 3.3V 34mm 3W 3kV 70V~350V 72% 85VAC~265VAC AC/DC-DC Short Circuit Protection、Over Current Protection ±0.2% 插件 AC-DC Power Modules ROHSHI-LINKAC-DC Power Modules
BT137
TO-252Thyristors (SCR)/ModulesJUXING
MOC3041M
DIP-6-40℃~+85℃ 1 1.25V 2000V/us 4.17kV 400V 60mA TRIAC Yes DIP-6 Triac, SCR Output Optoisolators ROHSonsemiTriac, SCR Output Optoisolators
README
README.mdLightFox Dual - ESP8266 Dual RF switch for lights
Connecting the board
The board has following connectors:
- mains connector with sqrew terminals (
Lin,L1,L2,N). Mains supply should be connected toLinand one ofNterminals. The loads are connected toL1/L2and one ofNterminals. - ISP connector for ATTiny flashing. Pins are (from left to right):
RST,MOSI,MISO,SCL) - switches output connector for debug, etc. These are connected to ATTiny outputs controlling triacs. Pins are (from left to right):
L1,L2,3V3,GND.
Schematics
Layout
Firmware
There are two microcontrollers to run this switch
-
ESP-01 - use one of available firmware options:
- ESPurna firmware: https://github.com/foxel/espurna/tree/lightfox-dual
- Tasmota firmware: https://github.com/foxel/Sonoff-Tasmota/tree/foxel_dual_rf
-
ATTINY441 - firmware is in
attiny-firmwarefolder. This requires ATTinyCore to build
To flash ESP module connect it to PC any available way (e.g. USB-Serail adapter + breadboard) and follow selected firmware option flashing instructions.
To flash ATTINY:
- remove ESP-01 module from the header
- connect ISP programmer (i.e. Arduino flashed with ArduinoISP) to ISP port
- use Arduino to flash MC: board is ATTiny441 (installed from ATTinyCore)
BOM
| Item | Qty | Reference(s) | Link |
|---|---|---|---|
| 100uF, 5v | 1 | C1 | |
| 3mm red LED | 2 | D1, D2 | |
| BTA08-600BW | 2 | D3, D4 | |
| 1A fuse | 1 | F1 | |
| Screw Terminal 01x03 | 2 | J1, J3 | |
| 4pin header | 2 | J2, J4 | |
| 470R, 0.125W | 2 | R1, R2 | |
| 150R, 0.125W | 2 | R3, R4 | |
| 390R, 0.5W | 2 | R5, R7 | |
| 470R, 0.5W | 2 | R6, R8 | |
| 10K, 0.125W | 1 | R9 | |
| Itead.cc RF receiver | 1 | RF1 | https://www.itead.cc/rf-receiver-module-433mhz.html |
| ATTINY441-SSU | 1 | U1 | |
| ESP-01S | 1 | U2 | |
| MOC3043M/MOC3063M | 2 | U3, U4 | |
| HLK-PM03 | 1 | U5 |
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 470R | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R1, R2, R3, R4 |
| 2 | 390R | Resistors_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P5.08mm_Vertical | R5, R7 |
| 2 | 470R | Resistors_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P7.62mm_Vertical | R6, R8 |
| 2 | BT137 | TO_SOT_Packages_THT:TO-220_Vertical | D3, D4 |
| 2 | Conn_01x04 | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J2, J4 |
| 2 | LED | LEDs:LED_D3.0mm | D1, D2 |
| 2 | MOC3041M | Housings_DIP:DIP-6_W7.62mm | U3, U4 |
| 2 | Screw_Terminal_01x03 | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-3pol | J1, J3 |
| 1 | 10K | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R9 |
| 1 | ATTINY441-SSU | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U1 |
| 1 | CP_Small | Capacitors_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | ESP-01v090 | ESP8266:ESP-01 | U2 |
| 1 | Fuse_Small | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | F1 |
| 1 | HLK-PM03 | Power_Supply:HLK-PM05 | U5 |
| 1 | RF_Receiver_EV1527 | footprints:RF_Receiver_Decoder | RF1 |
The 25 most common of 29 parts.
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32 parts2
Questions
How big is the Esp switch PCB?
It measures 50.8 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Esp switch use?
29 parts, built around the ATTINY441-SSU, HLK-PM03, BT137 and MOC3041M. 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 Esp switch KiCad files?
From the foxel/esp-dual-rf-switch repository on GitHub, at the commit this page was made from: the board is esp-switch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esp switch design in my own project?
Its repository states no licence, so its author keeps all rights: ask foxel before reusing the design.