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Download the USB driver so the ESP32S board can communicate with your computer. The Mac OS version can be found here.
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Unzip the download and open the installer SiLabsUSBDriverDisk.dmg.
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A new window will open. Click on Install CP210x VCP Driver to open the driver.
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You might be asked for confirmation to open the Driver. To proceed click 'Open'.
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Follow the onscreen instructions to install the USB driver.
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The USB driver will let the ESP32S board communicate with your computer. You don't have to open the driver beyond this step, it will just do its thing in the background.
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The Yo-Yo Firmware Uploader will enable you to upload the latest firmware to your ESP32S board. Download the latest release here.
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Open the downloaded app. Note that your operating system may ask you to verify the app.
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You will need to give permission to open the app in System Preferences > Security & Privacy when prompted.
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Plug your ESP32S board into your computer with the USB cable. You should see a red light on the board, which means it is powered up.
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Open the Yo-Yo Firmware Uploader and select the device in the drop down menu. You may need to press “refresh list” if you do not see it in your list.
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Your board's serial port should appear as '/dev/cu.SLAB_USBtoUART'
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Leave the 'Erase Wifi Details' box unticked.
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Use the 'project' drop-down menu to select which device you are making.
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When you're ready, click on Upload to upload the latest firmware.
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When prompted, hold the BOOT button on your board to set it to "programming mode". You can let go of the button once you see the text "Writing" in the console text.
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When the uploader finishes transferring the firmware to the device, it will say "Success!"
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If you have another device to set up, you can repeat the previous step with the second ESP32S board.
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Unplug the first device from your computer to make sure that you that you upload the firmware to the second device.
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Select the device in the drop down menu of the Yo-Yo Firmware Uploader . You may need to press “refresh list” if you do not see it in your list.
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Power up the first ESP32S (with uploaded firmware) using a USB port or USB power supply and wait 10 seconds.
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If you are setting up two devices in the same space, turn on the second ESP32S at least 10 seconds after the first. If you are setting them up remotely, you do not need to synchronise in this way. You should still wait at least 10 seconds before proceeding so the ESP32Ss can establish a network.
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With your mobile device or computer, connect to the newly created Wi-Fi network named “Yo-Yo-####” with the password “blinkblink”. If you are viewing these instruction online on our website, use another device to connect to the new network so you can keep the instruction open. This procedure is the same whichever method you are using.
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A captive portal should open automatically.
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Fill in the prompts with credentials for the Wi-Fi network that you want to connect to.
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Copy the text under the heading “Your Yo-Yo Code”.
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Send your Yo–Yo Code to your partner via SMS, email, etc., in exchange for the one from their device.
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Enter the Yo-Yo Codes for the partner devices in the text field named “Remote Yo-Yo Code”. It should be in the same format as yours eg: “4289 423988”. Once the forms are complete, press “Save”.
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Wait for the devices' blue LEDs to blink 3 times to confirm the local wifi details are correct. If these details have been inputted incorrectly, please reconnect to the Yo-Yo-#### network and try again.
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Once both devices have confirmed they can connect to their respective wifi networks, the connection between the devices can be tested. This is done by pressing the “BOOT” button of one device to blink the on-board led of the other.
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Gather your components and take a moment to identify them.
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DIN = Data In
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VDD = Supply voltage
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GND = Ground
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DOUT = Data Out
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Bread boards are used to create quick connections between electronic components.
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They have sockets that are electrically connected in rows. The connected sockets are shown as green lines in this diagram.
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Jumper leads and components place in these rows will be connected together.
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Place LEDs in breadboard as pictured. Make sure the orientation of the LEDs are the same (short legs to the left of the breadboard)
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Place one side of the ESP32 onto the other side of the breadboard. The side used should be the same side as the button labelled boot.
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Wire the leftmost pin (DIN) of the LED to pin D5 of the ESP32.
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Next, wire the adjacent two pins (VDD and GND) to the equivalent pins on the other LED.
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Connect the remaining leg (DOUT) of the lefthand LED to the leftmost leg (DIN) of the righthand LED
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Add a wire in line with the LED's centre left leg (VDD) and connect that to the ESP32 3v3 pin. This LED leg is the shorter leg of the middle legs.
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Add a wire in line with the LED's centre right leg (GND) and connect that to the ESP32 GND pin. This LED leg is the longer of the middle legs.
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Add the final jumper wire in line with ESP32 pin D4.
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An external Button can be used instead of capacitive touch by adding a switch between pin D23 and GND on the ESP32.
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Plug in your USB micro cable.
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Make another Light Touch device using the same steps (11 - 21).
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Press and hold the capacitive touch lead (white) on one Light Touch device to scroll through different colours. Let go to select a colour.
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Tap quickly on the capacitive touch lead to send this colour to the other Light Touch Device.
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Using the second Light Touch, select and send a colour back.
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This step is optional, but the red power LED on the ESP32S board can seem quite bright in a darkened space and interfere with the main LED's. Covering this LED with a piece of Blu Tack or tape will eliminate the issue.
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By default, the LED's are programmed to slowly fade to off over 6 hours from the last touch. However, the fade time can be adjusted by adding additional jumper leads.
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To reset the fade time to 3 hours from the last touch, to off, add a jumper lead between pin D22 on the ESP32S and ground (GND) as shown in the first picture.
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To reset the fade time to 1 hour from the last touch, to off, add a jumper lead between pin D21 on the ESP32S and ground (GND) as shown in the second picture.
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To reset the fade time to 9 hours from the last touch to off, add jumper leads between pin D21 & D22 on the ESP32S and ground (GND).
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Now that your Light Touch device is working you can now think about what kind of enclosure you want to encase it in.
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We have a few examples in the Enclosure section of the website , or feel free to invent your own.
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Gather the parts and tools shown in the picture.
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Remove the LEDs from the breadboard.
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Add male to female extension jumper wires to each of the legs of the LEDs and place them in their corresponding position in the breadboard.
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Test the device to check that the circuit is working properly.
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Mark a circular window of approximately 85 mm diameter in one plate. The circle should be located off centre to allow space for storing the electronics.
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Cut the circle with scissors or a scalpel.
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Mark three equidistant points along the edge of the plate. These points will be the guides for positioning the bulldog clips that will hold together the lamp.
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On a new plate, mark the area of the window by placing the cut plate on top. The marked circle will work as a white background for the LED lights of your device. This lighting area should remain clear. All the electronic components will be placed around it.
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While in position, copy the three marks from the front plate. The marks will help you to align both plates together.
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Fix the breadboard assembly around the lighting area as shown in the picture. The breadboard has a double sided tape backing which can be used to attach it to the plate.
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Make sure the breadboard cables are tucked under the board. The capacitive touch lead should be left aside.
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Position the LEDs around the lighting area following the picture as a guide. The LED to the upper left of this image is your 'send' light, the other is your 'receive' light.
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Once you have decided the right position of both lights, secure the LEDS to the plate with sellotape. Use two foam strips (from ESP32S board packaging) as spacers to elevate the LEDS from the plate.
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Place the two remainer foam strips on top of each LED and secure them with tape. These will act as a diffuser to the lights.
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Now that the setup of the LEDs is complete, you can tidy up the cables by securing them to the plate with sellotape. This will help to have a tighter fit when you clip the front and back plate together.
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Now you will make an opening on the brim of the plate to let the micro USB lead out so that the front plate and back plate can close together tightly.
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With a pencil, mark the outline of the USB lead where the cable touches the brim of the plate.
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Make an opening in the shape of a slit with the help of scissors. The opening should be slightly wider than the cable.
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Cut a 4 x 18 cms strip of aluminium foil and fold it in half in both directions until it is about 2 x 9 cms.
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Take one end of the foil strip and wrap it around the pointy connector of the capacitive touch lead.
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Place the wrapped connector on the plate so that the aluminium foil sticks outside the plate about 1 cm on the right bottom guide mark on the brim of the plate
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Once in position fix the connector and foil strip to the plate with sellotape.
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Place the front plate on top of the back plate. The electronics will be fully covered and the white lighting area in the circular window will be clear.
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Make sure the guide marks in both plates are aligned.
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Fold back the foil capacitive touch button so that it covers the brim of front plate.
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Once in position, secure both plates together with the three bulldog clips.
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Light Touch is ready to use. You can place it on a wall by hanging it to an eye hook or nail from the top bulldog clip.
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Enjoy!
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Use the capacitive touch bulldog clip to operate the device.
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Press and hold the bulldog clip to scroll through different colours. Let go to select a colour.
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Tap quickly on the bulldog clip to send this colour to the your paired Light Touch device.
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Receive a second colour back from your paired Light Touch device.
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Almost done!
Finish Line