# Wifi Modem ESP8266 - ESP-01 #
**for Retro Computer**
Simulates the old-style Hayes "AT" commands, so that the ESP8266 appears to the terminal as if it were a Hayes modem. These "AT" commands may then be issued to the ESP8266 in order to force it to connect to a wireless access point, and from there to make one or more manageable connections to the internet. It also includes...
The ESP programmer is a breakout board to upload firmware on ESP8266. It benefits of USB-C connector, the new de-facto standard on the market.
It is designed to be attach to Lolin/Wemos D1 mini shield. If you are not going to used this form factor, you can break the external frame [video](https://youtu.be/vi9zZSLOqzo), gaining some mm^2.
![small esp programmer.jpg](//image.easyeda.com/pullimage/b...
An Arduino/ESP8266 display board for 3x2 788BS red led matrices connected to max7219 drivers.
The IREG is higher than usual to reduce brightness, use a smaller resistor (maybe 30/40 K) for daylight applications.
Work in progress, comments are wellcome.
When used with MD_MAX72XX and MD_Parola libs this matrices are not one of the supported hardware types, but I was able to wire 1 and 1+1 on a bre...
Extension board for Gewiss GW20220 power outlet: http://www.gewiss.com/prv/en/products/catalogue.l_ZP6000000000000001000023910100000.html
1) Wi-Fi connectivity with ESP8266
2) On/Off using 10A relay
3) Power meter based
4) Led indicator/Buzzer
1) Remote on/off
2) Power measurements (ac curre...
Home air monitor is based on the development board NodeMCU (CP2102 version). It includes a temperature sensor - ds18b20, a humidity sensor - HTU21D, a carbon dioxide sensor MNH-Z19. It is also possible to connect one more i2c sensor and a radio module to 433 MHz.
A ESP-12 IoT controller for RGB LED Stripe 5-12V.
3+1 channels through MOSFET, PWM and dimming functionality.
The MOSFETs can be replaced by NPN Power transistors (input resistors are as THT parts placed, the 10k pull down's not needed.
The 4th channel is a Logic level up-converter (3.3V->5V). Driven by a 2N7002, can be replaced with BSS138 or similar. Note that it's is a very small power output...
Temperature, humidity and luminance sensor based on ESP12-E (ESP8266).
- The temperature and humidity sensor is DHT22, but you can setup any other.
- The pir sensor could be any with abinary digital output.
- The luminance sensor is based on ADC
USB port is only for power (you can also power it by the header male pins).
For programming you have to use the UART pins.