Distance Rough Test NRF24duino and Loarduino Board (Updating)
We have tried first round of test, very very simple setup, to just make sure all can work and what is the performance by default without any optimize.
Electrodragon boards and modules used in education
We are pleased to inform that our boards and modules have been used during course "Internet of Things" at the WSB University in Wroclaw (Poland, UE).
Liquid Flow Sensor, Turbine Meter wiring with ESP8266
Thanks to customer Mark, here is wiring diagram of the flow sensor/meter with esp8266, the key point is needing a 555 timer chip as a Schmitt trigger. Also the VCC voltage of flow sensor is 5V, and esp8266 is 3v3, a voltage divider is needed in the circuit. You can find the flow...
ESP8266 Smartconfig Follow Up
It seems the current online custom build with dev branch can not work well with smartconfig, or the ESP8266 smart config android APK, so we tried to figure with the espressif official APK and master branch. The master branch is: Build on ESP8266 NONOS SDK 1.4.0, support ESPTouch 0.3.4.3 Dev branch version is Espressif...
SmartConfig ESP8266 for NodeMCU and AT-commands
A simple breakout board of ESP8266 on breadboard can do most of NodeMCU work. Also need a PL2303 USB-TTL programmer Most wifi embedded project will not have too much input and output resource to let the user enter the wifi SSID and password info, so we normally config this via...
ESP8266 Flash Firmware
All the relevant items can be purchased from www.electrodragon.com! items used in here including: ESP-07 with on board status LED (ESP-12 LED will not work for arduino blink sketch) ESP breakout board CH340 USB-TTL programmer breadboard and a few jumper wires. You can find the flash tool on this page. Flashing options in the...
Flash Firmware for NodeMCU on ESP-12 with Breakout Board
You will need firmware, NodeMCU flasher to flashing the firmware, and Esplorer GUI to test the firmeare. All the tool you can find it here. Wiring as below use a PL2303 USB-TTL here: TX-RX, RX-TX, GND-GND, 5V - VIN (more…)
Flash NodeMCU to Wi07-12 ESP8266 Board
The NodeMcu development board is sold out recently, not sure when the new stock will arrive. The development has some peripheral circuit to ease your usage, including USB-UART, USB5V-3.3V power supply, buttons, and lead out all the IOs. But you can still use the Wi07-12 standalone without the dev board, we...
ESP8266 SDK Windows Setup (updated 11/29)
There is already an official SDK running on Linux Lubuntu, very easy and simple to use. But now here we have the SDK environment transplant to Windows system via the software tool called cygwin, which allow you to create the linux environment in the windows, and we have the SDK running...
ESP8266 GPIO Test (Edited firmware)
To use Update date to now firmware, at commands V1.5: download at commands 1.5V here, if you use 1MB flash for esp-01s or 4MB for esp-12F, etc, etc. can use the combined bin. https://github.com/Edragon/esp_firmware/tree/master/AT Also at commands instruction inside, has GPIO function, need this three. AT+SYSIOSETCFG=13,3,1 AT+SYSGPIODIR=13,1 AT+SYSGPIOWRITE=13,1 --- The following content is obsolete, not necessary --- ...
