This device was made to be a portable off-grid communication method for my wife and I to use for backcountry adventures. It uses the open source meshtastic technology to form a mesh network over LoRa radio frequency to allow for text messages to be transmitted between devices with the meshtastic app when paired to your phone via bluetooth. It magnets to the back of your phone with a magsafe ring making it nice and portable.

This device is an open source device the real credit goes to the Meshtastic team and phspman.

After testing in the austere mountains of Idaho I've determined that I will not be moving forward with the project or any other LoRa devices. In the dense ponderosa forest where I live the range is just not enough to be effective for my purposes. Many have reported that the range is much greater in flat open country, however that is little use to me. I will not be selling this device, i'm sorry! I do have a number of cases printed if you're still interested in pursuing this project. It's still very educational and interesting technology.

I'd recommend reading more about the meshtastic technology here.

• Case TOP and BOTTOM



• Heltec V3 Board - battery connector included Link
• Antennas (small) - Link
• Antenna long range (RECOMENDED)- Link
• 3.7v 1100mAh battery - Link
• Screws - #6 x ½” self tapping (7mm x 13mm) - Link
• Magsafe ring - Link
• Magnets - 5mm x 2mm - Link
• Switch - Link

1. Print case


2. Download Chrome browser


3. Using Chrome, flash latest meshtastic firmware to the main board. Select Heltec V3 Link

1. Download meshtastic app from the AppStore or Google Play Store


2. Cut ends of battery harness included in heltec V3 box.


3. Cut ends of 1100mAh battery cables


4. Solder battery wires, switch and heltec harness together as shown. Battery to middle post on switch.

1. Insert switch into switch opening in case


2. Install SMA connector into antenna hole on casein onto V3 board

Connect antenna wire to board

1. Insert battery


2. Configure wires so case closes