ESP8266 Projects

Wednesday, May 3, 2017

ESP8266 USB Programmer USBProg

USBPrg v8.4 - a fully isolated SAFE USB to Serial adapter for communcation and programming devices protecting your USB ports and devices.

The perfect companion for a complete Development platform for your projects!

Now available on TINDIE Store: https://www.tindie.com/products/nEXT_EVO1/usbprgv84-isolated-usb-serial-programmer-adapter/

You can buy it a special price in the MPRSx8 Home Automation Development pack - MPRSx8 Dev Board + USPPrgv8.4 programmer: https://www.tindie.com/products/nEXT_EVO1/wifi-8x-mains-relays-board-for-home-automation/

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What is it?

A fully isolated USB to Serial adapter for communication and also programming devices protecting your USB ports and connected devices.
Integrated hardware Autoreset function makes it suitable for direct programming ESP8266, ESP32 and other MCU's that require it.
If you use Arduino IDE/Platformio/etc for example with ESP8266, you will love it, as it doesn't need to press anymore RST/Prog buttons for new sketch upload! The autoreset function takes care of that, putting automatically the ESP8266 module in the right boot mode.

Youtube Video step-by-step Tutorial on how to use it to program a ESP8266 Module:

In the case above ESP8266 is embedded on a MPRSx8 Home Automation board but in the same easy way can be used for programming standalone ESP8266 modules.

Pinout

Capabilities

Fully isolated interface
High speed (can work OK also at 115200 and up - used it with Arduino IDE/Platfromio at 921600)
DTR/RTS/autoreset function

2.5 kV RMS integrated digital isolator from Silicon Labs
High electromagnetic immunity
Ultra low power
Schmitt trigger inputs
Transient Immunity 50 kV/μs

Schematics

USB interface

Digital isolator

Auto-reset circuit

Below you can find also the wiring for the MPRSx8 Home Automation Board Programming:

Monday, April 24, 2017

ESPBasic - Web Interface - CSS elements example

A quick example on how to change your Web interface GUI objects properties without using a separate CSS file.

Reading Himidity and Temperature from a DHT22 Sesor connected to the GPIO5 and also retrieving Date and Time from NTP Server:

PinDHT = 5
DHT.SETUP(22, PinDHT)

cls

timer 1000, [branch] ' ## Time for auto refresh variables ##

wprint |<body style="background-color:powderblue;">|
wprint |<H1><span style="color: red;">|
wprint "Example for changing GUI object properties with CSS"
wprint "</H1>"
wprint "</span>"

wprint "<table border='1'><tr><td>Date</td><td>"
textbox Dtm
cssid htmlid(), "background-color: yellow;display:block;width:160px"
wprint "</td></tr><tr><td>Humidity </td><td>"
textbox Hum
cssid htmlid(), "background-color: grey;color:#F00;display:block;width:40px"
wprint "</td></tr><tr><td>Temperature Deg C</td><td>"
textbox Temp
cssid htmlid(), "background-color: #ccaabb;display:block;width:40px"

wprint "</td></tr></table><p>"

wprint "<p> Click to Exit <br>"
button "Exit", [TestExit]

Wait

[TestExit]
timer 0
end

[branch]
gosub [readdata]
wait

[readdata]
Dtm = time() 'Current Date and Time
Temp = DHT.TEMP() 'Current Temperature
Hum = DHT.HUM() 'Current Humidity

The result looks as below: