ESP8266: Connection to SN74HC595 via SPI
The objective of this post is to explain how to transfer data between the ESP8266 and the SN74HC595 using the SPI interface.
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prototyping
ESP8266: Connection to SN74HC595
The objective of this post is to explain how to connect the SN74HC595 8-bit shift register to an ESP8266 to control some LEDs.
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SN74HC595: Shift Register
The objective of this post is to perform a brief analysis of the SN74HC595 shift register and its working principle.
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ESP8266: Encoding JSON messages
The objective of this post is to explain how to encode a JSON message using the ArduinoJson library.
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Buying cheap electronics at Ebay: Part 2
Buying cheap electronics at eBay (part 2)
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ESP8266: Parsing JSON Arrays
The objective of this post is to explain how to parse simple JSON Arrays on the ESP8266, using the ArduinoJson library.
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ESP8266: Parsing JSON
Introduction In this post, we will create a simple program to parse a JSON string simulating data from a sensor and print it to the serial port. We assume that the ESP8266 libraries for the Arduino IDE were previously installed. You can check how to do it here. In order to avoid having to manually decode
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ESP8266: HTTP POST Requests
How to perform HTTP POST requests from the ESP8266 using the Arduino core
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ESP8266: HTTP GET Requests
How to perform HTTP GET requests from the ESP8266 using the Arduino core
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Designing a LED matrix
How to create a simple LED Matrix using PNP transistors and a ULN2803A integrated circuit.
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