ESP32 Information
ESP3212 board based on ESP32 IC will be ready on around 20th,
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 sensor...
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...
Wireless Charging Test [Update March 1st]
You can find the mentioned items in our store here. This is a demo test of the pair of wireless power charger, five LEDs connected paralleled on the receiver end, output more than 200~300 mA (over range of display) current. There are some more notes: We use a very thin plastic bag to...
SMT Pick and Place Machine Work
Pick and place file output from eagle, and copy into a SD card for use. The machine only running 10% speed of normal, but actually it can run 150% speed of normal. Each time pick and place work include the following steps: Move to the PCB 0,0 (x,y) zero point, which is...
2016 Chinese New-Year Holidays
Shipment Suspend: We will have a long holiday from 4th till 13th, delivery can not be fulfilled during this time. Holiday promotion: Use coupon code "2016-year" to get 10% discount. This discount is not conflicting with your member discount. PCB service PCB service will restart on 14th, please notice. If you place PCB order now, we will need to...
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 phone app....
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 tool explained here. First...
This is a standard audio embedded post
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WS2812 Stick Board Test
You can find the arduino library in the product link: https://www.electrodragon.com/product/ws2812-neopixels-ring-leds/ https://www.electrodragon.com/product/8-led-ws2812-5050-rgb-led-stick-board/ From the example, run "standtest" sketch, follow the instruction to setup for the board, and it will show all the standard effects: The wiring should be Din - pin6 of arduino, VIN - 5V arduino, GND - GND arduino. And here is...
