Published March 8, 2019 © MIT

Make Your Remote Control with XinaBox, Zerynth and Ubidots

Learn how to use XinaBox xChip SH01 – capacitive touch sensor – with Ubidots to control devices remotely from anywhere.

BeginnerFull instructions provided15 minutes623

Make Your Remote Control with XinaBox, Zerynth and Ubidots

Things used in this project

Hardware components

(Optional) USB extenion cable

Software apps and online services

Ubidots

Zerynth Studio

Story

XinaBox produces arange of 70+ modular xChips, which include cores/CPUs, sensors, power, communication, output, and storage, using a connectivity standard without wires, soldering, breadboards or hardware knowledge

The xChipCW02 (ESP-WROOM-32 Wi-Fi and Bluetooth module) allows users to send data from XinaBox’s modular xChips to the cloud, and control device according to the obtained data.

The xChip SH01 is based on the CAP1296 which is a multiple channel capacitive touch sensor controller. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically re-calibrated to compensate for gradual environmental changes.

By the end of this guide, you will be able to publish pressed capacitive touch button to Ubidots.

Requirements

● 1x CW02 – WiFi and Bluetooth core (ESP-WROOM-32)

● 1x SH01 - Capacitive Touch(CAP1296)

● 1x IP01 - USB Programming Interface (FT232R)

● 1x XC10 - 10-Pack xBUS Connectors

● Ubidots account

● Zerynth Studio

Step-by-Step

1.Hardware Setup

2.Setting up the ZerynthStudio

3.Verify andUplink the code

4.Summary

1. Hardware Setup

Connect CW02, SH01 and IP01 together using the XC10xBUS connectors. You may connect it as shown in the diagram below. Please see this guide on how to assemble xChips generally:

Then connect your device and PC throughthe IP01’s USB.

2. Setting up the Zerynth Studio

1. Download and Install Zerynth Studio r.2.2.0.

IMPORTANTNOTE: If you are not familiar with Zerynth Studio, please refer to thelink: Downloading and Installing Zerynth Studio.

3. With the Zerynth Installed, Connect, Register and Virtualize your Device

4. Select XinaBox CW02 (ESP32) from the Device dropdown:

3. Verify and Uplink the Code

Make sure that the device is Connected, Registered and Virtualized.

Verify and uplink the code:

When any button on the xChip is touched, corresponding numericalrepresentation is published.+2 for Triangle, -2 for Cross, +1 for Circle and -1 for Square:

4. Summary

In this tutorial, we have learned how to use XinaBox xChip SH01 to publish capacitive touch values to Ubidots for controlling devices remotely with just simple touches. With another Wi-Fi xCore, the values can be retrieved from Ubidots to control devices such as Wireless controlled Robot.

import streams
from wireless import wifi
from xinabox.sh01 import sh01

streams.serial()

# SH01 instance
SH01 = sh01.SH01(I2C0)

from espressif.esp32net import esp32wifi as wifi_driver
wifi_driver.auto_init()

from ubidots.iot import iot

# configure SH01
SH01.init()

print('connecting to wifi...')
 
#Connect to the specified Wi-Fi device
while not wifi.is_linked():
    try:
    # FOR THIS EXAMPLE TO WORK, "Network-Name" AND "Wifi-Password" MUST BE SET
    # TO MATCH YOUR ACTUAL NETWORK CONFIGURATION
      wifi.link("SSID",wifi.WIFI_WPA2,"PASSWORD")
      print("Link Established")
    except Exception as e:
      print("ooops, something wrong while linking :(", e)
      print(".")
    sleep(1000)
 
print('connecting to mqtt broker...')
try:
    #Enter your DEVICE-NAME and Unique Ubidots TOKEN
    device = iot.Device('DEVICE-NAME','business','TOKEN')
    device.mqtt.connect()
    print("Connected to mqtt broker")
except Exception as e:
    print("ooops, something went wrong :(", e)
    while True:
       sleep(1000)
 
device.mqtt.loop()
btn=0
btnPrev=0
while True:
    button = SH01.touched()         # return which button is pressed
    if button  == 'square':         # square touched
        btn=-1
        print('SQUARE TOUCHED')
    elif button == 'triangle':      # triangle touched
        btn=2
        print('TRIANGLE TOUCHED')
    elif button == 'circle':        # circle touched
        btn=1
        print('CIRCLE TOUCHED')
    elif button == 'cross':         # cross touched
        btn=-2
        print('CROSS TOUCHED')
      
    #Publish only if different button is touched  
    if((button) and (btn!=btnPrev)):   
        device.publish({"value":btn},variable="buttonPressed")
        btnPrev=btn
    sleep(100)

Credits

KalbeAbbas

25 projects • 20 followers

An enthusiastic and dedicated Electronic engineer graduated from SSUET Karachi, Pakistan. Loves to discover Embedded electronics projects.

Thanks to XinaBox.

Make Your Remote Control with XinaBox, Zerynth and Ubidots

Things used in this project

Hardware components

Software apps and online services

Story

Requirements

Step-by-Step

1. Hardware Setup

2. Setting up the Zerynth Studio

3. Verify and Uplink the Code

4. Summary

Code

main.py

helpers.py

Credits

KalbeAbbas

Comments

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Make Your Remote Control with XinaBox, Zerynth and Ubidots

Make Your Remote Control with XinaBox, Zerynth and Ubidots

Things used in this project

Hardware components

Software apps and online services

Story

Requirements

Step-by-Step

1. Hardware Setup

2. Setting up the Zerynth Studio

3. Verify and Uplink the Code

4. Summary

Code

main.py

helpers.py

Credits

KalbeAbbas

Comments

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