Begin by opening the AMP2 housing. Remove the 3 screws (2 on the sides and one on top) and carefully remove the front panel. All electronics and connections remain on the front panel as it is removed. The rear portion of the case can now be mounted on the wall, using screws or removeable adhesive strips. It is recommended to have all the AMP2 units mounted at a consistent height for ease of access by visually impaired users.
The AMP2 is designed to play a single MP3 audio track. This MP3 file is stored on a microSD card (32 GB or smaller). It is recommended to have only one MP3 file on the memory card, but if more than one file is present the active file should be named 001xxxx.MP3 (xxxx can be any text as long as the file name begins with 001 and the file extension is .MP3. Insert the microSD card into the socket. Make sure the headphones are attached to the connector on the main board. The headphone connector is located behind the music player module (the module with the MicroSD card on it). The headphone cable should be routed under the player module and inserted fully into the headphone connector. Although the player module does not need to be removed to attach the headphone cable, removing it may make installation easier. Note the orientation of the player module, with the MicroSD card towards the headphone jack. Connect power to the AMP2. Connect a power cable to the USB-C connector directly on the ESP32microprocessor module. To set the default volume, press the start button before inserting the front panel into the wall mounted case. Use the volume adjustment knob to set an appropriate level. Then, while the track is still playing, press the “Volume Set” button on the main board. The “Click Count Reset” button can be pressed if desired to reset the click counter to zero. Note: Both the default volume and counter reset can be set using the web interface (if used) as well. Insert the front panel into the wall mounted case. The headphone and USB power cable should be guided into the slot on the bottom as the front panel is inserted. Make sure the bottom panel slides into the channel molded into the case.
Connecting to the network (optional)
If network access is desired, the AMP2 must be configured to connect to a WI-FI network. If the AMP2 is not currently configured to access a network, it will create a WI-FI hotspot. The SSID of the hotspot will be “AMP2configuration”, and the password to connect to it is “robynsart”. Connect a computer to the hotspot network, and load the page “http://192.168.4.1/” in a browser. A screen should display which allows configuration of the SSID and credentials for your existing Wi-Fi network. It is recommended (but not required) for security that you to create a dedicated Wi-Fi network for the AMP2 devices. The AMP2 devices do not require internet access to function. Check the DHCP service (typically the wireless router) to determine what IP Address has been assigned, which will be used to connect to the web interface. Document each AMP2 IP address for access later. A suitable SSID and password should be used on the wireless network to provide security appropriate for the environment. The AMP2 hotspot will not be available once another network connection is complete (unless that network connection fails to connect in future).