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A Cheaper ESP8266 WiFi Shield for Arduino and other micros
How to use the ESP8266-01 pins
Code generator for custom Android/Arduino menus to switch Arduino outputs on and off. Andriod/Arduino for Beginners. Absolutely No Programming Required
ESP8266 Wifi Add on for Arduino Made Simple
I've been curious about the BBC Micro:bit so thanks for the Ible :)
Added section on How Much Memory (RAM) is Available?
Added note about SYNC_SPINWAIT problem.
Added note about limitations on printing doubles.
Very nice instructable. Exactly what I was looking for to switch a 12V optically isolated relay board. Thank you.
Corrected schematic for using TX/RX as SDA/SCL Thanks to diy_bloke for catching the error
thanks. for the link. Indeed, 4 pins can do a lot. I still have a PCF8591 ADC coming and a PCF8574 I/O expander and BH1750 sensor I want to try to put all on 1 bus
BBC micro:bit C++ Getting Started
How to use the ESP8266-01 pins also covers this topic
Yes you can do a lot with just the few pins the ESP8266-01 provides.How to use the ESP8266-01 pins also covers this topic and I have added a cross link from there to here as another example.If you have trouble with I2C startup, How to use the ESP8266-01 pins also has a link to common I2C problems and a small method to help clear the I2C bus.
Yes you can do a lot with just the few pins the ESP8266-01 provides.How to use the ESP8266-01 pins also covers this topic
Using the 4 pins of the ESP8266-01 has an example of using I2C
Home Automation - How to Add Relays to Arduino
Retrofit Lights with Remote Control - Existing wall switches keep working
ESP8266 Using GPIO0/GPIO2/GPIO15 pins
I think you would need to use the Arduino relay to switch the voltage to the coil of the HIGH POWER relay that actual switches between solar and mains power. The relays shown here only carry enough current for one power point. Not enough for a whole house.
Hello, I wanted to know if I could use an arduino relay for switching power to a whole house. (for switching between a solar power and main grid power lines)
In the second picture above, Output D4 is connected to the relay. Make Output D4 high/low to control the relay. If you are using pfodApp to control your Arduino from your Android mobile then you can use the free pfodDesignerV2 app to design the Android on/off slider user interface, interactively, and then generate the Arduino Code to connect to pfodApp to allow you to control the relay from your Android mobile, (no Android coding required) You can connect to your Arduino with pfodApp via Bluetooth, Bluetooth Low Energy (BLE), Wifi, Ethernet or SMS
How do you control the relay?
Added ESP8266 Programming Tips (espcomm failed) section
BBC micro:bit C++ off-line setup
Added a section, Help My Relay Stopped Working (RC Snubbers)
Update 28th Sept 2016 – DebouncedSwitch V3.0 has improved AC noise rejection
Retrofit Remote Control to Existing House Lights - Existing wall switches keep working
Do Not use the Arduino ESP board library V2.3.0 for this project. V2.2.0 works
DoNot use the Arduino ESP board library V2.3.0 for this project. V2.2.0works
Retrofit Fan Timer With Override Off and Settable Time
Retrofit Fan Timer with override off and settable time
Android Garage Door Opener - No Andriod programing, No Soldering required.
Android controlled Lights and Power, pfodDevice for Arduino
Discretionary Load Control on an Off The Grid Power System using pfodApp™
Reliable, Secure, Customizable SMS remote control (Arduino/pfodApp) - No coding required
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