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:

WIFI Dev Board for Home Automation - Part 2

This is Part 2 of the Wifi Dev Board for Home Automation series. For general presentation and hardware description please take a look also at Part 1 of the series


MPRSx8 Board is available also on Tindie store: https://www.tindie.com/stores/nEXT_EVO1/







What we will need:

• MPRSx8 Board
• ESP8266 ESP-12E module loaded with ESPBasic firmware
• For programming we will use the brilliant ESP Basic interpreter Web editor

Software implementation:

As this time we will talk about the Software side we will design a very simple driver for our board that will include also a interactive Web command interface for the MPRSx8 Home Automation Dev Board Relays.

To keep things simple, we will just add in our Web Interface 8 ON/OFF Buttons and one general OFF one, from where we can turn ON/OFF all the Relays switches. 


1. Main Program

cls                       ' clear interface
let address = 56  'PCF8574 I2C Address

i2c.setup(4,5)      'choose your I2C bus pins

i2c.begin(address)
ss = 0 xor 255      'XOR - Bit masking for the desired I/O pins
i2c.write(ss)
i2c.end()
button "x1", [5]    ' Button for Relay 1
button "x2", [6]
button "x3", [7]
button "x4", [8]
button "x5", [1]
button "x6", [2]
button "x7", [3]
button "x8", [4]    ' Button for Relay 8
button "OFF", [9] ' General OFF for all the Relays
wait

2. General OFF for all the Relays subroutine

[9]
i2c.begin(address)
ss = 0 xor 255 'XOR - Bit masking for the desired I/O pins
i2c.write(ss)
i2c.end()
wait

3. Subroutines for each Button

[1]
i2c.begin(address)
ss = ss xor 1   'XOR - Bit masking for the desired I/O pins
i2c.write(ss)
i2c.end()
wait

[2]
i2c.begin(address)
ss = ss xor 2
i2c.write(ss)
i2c.end()
wait

[3]
i2c.begin(address)
ss = ss xor 4
i2c.write(ss)
i2c.end()
wait

[4]
i2c.begin(address)
ss = ss xor 8
i2c.write(ss)
i2c.end()
wait

[5]
i2c.begin(address)
ss = ss xor 16
i2c.write(ss)
i2c.end()
wait

[6]
i2c.begin(address)
ss = ss xor 32
i2c.write(ss)
i2c.end()
wait

[7]
i2c.begin(address)
ss = ss xor 64
i2c.write(ss)
i2c.end()
wait

[8]
i2c.begin(address)
ss = ss xor 128
i2c.write(ss)
i2c.end()
wait

In the Web editor interface Save your program as "test_MPRSx8_1.bas" and Run it.

If all OK the result should look as below:

If you want your program to start automatically at reboot/power ON then just Save it as "default.bas" and also from Settings Tab enable the "Run default.bas at startup".

Be aware that at start-up/reboot, it is a delay before your program will start automatically.

WIFI MAINS 8x Relay Board for Home Automation and more

Available also on Tindie store: https://www.tindie.com/stores/nEXT_EVO1/








Features:

• Compact, standard size: 16x5 cm! (half Eurocard height)
• Universal AC MAINS input (240VAC/50Hz (EU) or 110V/60Hz (US)
• Proper MOV and high quality ceramic FUSE MAINS input protection.
• 8 x MAINS rated 15A Relays
• 8 x independent swithing Power Channels 
• Power Channels can be software configured for mutually exclusive usage
• Recommended load upto 10A each channel
• LED signaling Panel for each Power Channel Status 
• Integrated switchmode MAINS PSU
• Separate high efficient switchmode PSU for command & control circuit
• Can work also from a external +12V power supply just not install the MAINS PSU
• Safe operation design
• I2C / nEXT Bus compatible - you can add your own extension modules - light sensors, gas, motion, etc
• Can be stacked upto 8 boards ( 1 Master and 7 slaves) for a total of 64 Power Channels!!
• Compatible with any I2C compatible MCU: Arduino, ARM, PIC, ATMEGA, ESP8266, ESP32, etc
• ESP8266 friendly design: can add your ESP8266 module directly onboard for a full WIFI MAINS Power switchboard solution
• Full access to ESP8266 pins thru 2 headers gives you even more flexibility in developing your projects!
• Full programming header  (Tx, Rx, GPIO0 and Reset)

Command and control side - pinout details

 Schematics:

MAINS input power supply

3.3V power supply for the command and control section

Relays driver

In Part 2 we will continue with the software side, how to connect, program and use the MPRSx8 Relay board.

All schematics, boards, software and articles released by ESP8266-Projects.com are licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.