ESP8266
ESP8266 Real-time COVID-19 Data Monitor
| 28 March 2020
If you still have to sit at home because of COVID-19, there is plenty of time to tinker. Last time we went to work with an ESP32, this
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Category: ESP8266
The ESP8266 is a low-cost Wi-Fi chip with full TCP/IP stack and microcontroller, produced by Espressif Systems.
The chip first came to the attention of western makers in August 2014 with the ESP-01 module, made by a third-party manufacturer, AI-Thinker. This small module allows microcontrollers to connect to a Wi-Fi network and make simple TCP/IP connections using Hayes-style commands. However, at the time there was almost no English-language documentation on the chip and the commands it accepted. The very low price and the fact that there were very few external components on the module which suggested that it could eventually be very inexpensive in volume, attracted many hackers to explore the module, chip, and the software on it, as well as to translate the Chinese documentation.
Features:
- 32-bit RISC CPU: Tensilica Xtensa L106 running at 80 MHz
- 64 KiB of instruction RAM, 96 KiB of data RAM
- External QSPI flash: 512 KiB to 4 MiB (up to 16 MiB is supported)
- IEEE 802.11 b/g/n Wi-Fi
- Integrated TR switch, balun, LNA, power amplifier and matching network
- WEP or WPA/WPA2 authentication, or open networks
- 16 GPIO pins
- SPI
- I²C
- I²S interfaces with DMA (sharing pins with GPIO)
- UART on dedicated pins, plus a transmit-only UART can be enabled on GPIO2
- 10-bit ADC (this is a Successive Approximation ADC)
The successor to these microcontrollers is the ESP32.
(Wikipedia)
ESP8266
Star Wars Game on ESP8266 with ESP-WROOM-02
| 30 January 2020
Microcontrollers are suitable for controlling devices and reading sensors, but you can also play games on them. I recently came across such a game: a Star Wars game
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Arduino
Alcohol Detector: ESP-WROOM-02 & MQ-3 Sensor
| 9 December 2019
With an ESP-WROOM-02 and an MQ-3 alcohol sensor you can easily make a portable alcohol detector. It will be a simpler implementation of the earlier project “Arduino breathalyzer:
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ESP8266
Tasmota on ESP8266 NodeMCU with Arduino IDE
| 1 October 2019
Tasmota is an alternative open-source firmware for devices that are based on the ESP8266 WiFi chipset. The firmware provides the devices with timers, a web interface, Over The
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ESP8266
WiFi jammer / deauth attack using ESP-Wroom-02
| 6 January 2019
One of the more obvious applications of a board like the ESP-Wroom-02 is using it as “WiFi jammer”. In the previous post I already wrote about the board
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Arduino
WEMOS D1 Esp-Wroom-02 and Arduino IDE
| 28 December 2018
The “WEMOS D1 Esp-Wroom-02” that I got from VNG Systems is another microcontroller development board with an ESP8266 WiFi chip. This board also has an OLED screen, 18650 battery charging
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