Complete BuildsMesh

Mesh Deck Junior 1.0

The flagship off-grid communicator — long-range LoRa messaging with a built-in keyboard.

The Mesh Deck Junior 1.0 is the flagship of the Mesh Series — a pocket-sized off-grid communicator with a real keyboard. It pairs a long-range LoRa radio and GPS with a color touchscreen and a 48-key QWERTY keyboard, so you can send messages and share your location with no cell network or internet connection.

Overview

Mesh builds are for staying in touch when there's no signal — hiking, festivals, travel, or anywhere off the grid. Instead of a cellular or internet connection, they use a long-range LoRa radio: a group of devices relay each other's messages, so you stay connected across distance.

The built-in keyboard is the Mesh Deck Junior's main difference — you touch-type real messages right on the device. It uses the Deck form factor — a pocket-sized body with a keyboard built into the bottom.

Mesh Deck Junior 1.0 — product photo

What's in the Box

This is a complete, pre-assembled build — everything you need is included.

Mesh Deck Junior 1.0 — what's in the box

Device & modules

  • 1× Attaky Mesh Deck Junior 1.0, pre-assembled with:
    • 1× Core: ESP32
    • 1× Expand: LoRa / GPS — 803–930 MHz ready
    • 1× Power: Standard Cell — battery included
    • 1× Control: Keyboard (Bottom)

Antenna

  • 1× 915 MHz whip antenna

Accessories

  • 1× color-matched USB-C to USB-C cable — for charging and data; matched to your Attaky colorway where possible
  • 1× USB-A to USB-C adapter
  • 1× self-adhesive wrap cloth — for extra protection, organization, or surface cleaning
  • 1× protective ESD moisture-barrier bag — for storage and component protection

Specs at a Glance

  • Series / form — Mesh · Deck (pocket body + built-in keyboard)
  • Core — ESP32
  • Display — 2.0-inch color touchscreen
  • Radio — long-range LoRa (915 MHz) + GPS
  • Controls — Core keys + 48-key QWERTY keyboard
  • Battery — 1000 mAh, about a day of normal use
  • Size — 68 × 97 × 29.8 mm, 156.8 g

Full details are in Specifications below.

Anatomy & Controls

The Mesh Deck Junior has two sections.

The Core in the upper section — the touchscreen, the five front keys (Up, Right, Enter, Left, Down) in a column down the right side, and the four top buttons (L1, boot, power, R1).The battery module — the power button, USB-C charging port, and power / charging indicator lights along its edge.

Upper section — the screen and Core controls:

  • A 2.0-inch color touchscreen.
  • Five keys down the right side of the screen: Up · Right · Enter · Left · Down.
  • Four buttons across the top edge: L1 · boot · power · R1.
  • A small status light — its color and blink pattern depend on the firmware.
  • The LoRa antenna screws onto the top — attach it before you use the radio.

Lower section — the keyboard:

  • A 48-key QWERTY keyboard built into the bottom.

Ports and power buttons:

  • USB-C on the Core — charges the battery, installs firmware, and connects to a computer.
  • A power button on the Core (top edge) and a power button on the battery (its edge) — see First boot below.

The power button is a hardware switch

A long press (about two seconds) turns the device on or off. It's a hardware switch, so it always works, even if the firmware is busy.

First Boot & Charging

Charge It

Charge through the Core's USB-C port — any standard USB power source works, and you can use the device while it charges. Give a new device a full charge before its first long session.

Two USB-C ports — use the Core's

The Mesh Deck Junior has a second USB-C port on the battery module. That one only works while the device is off, so for everyday charging use the Core's USB-C port.

Charge and update firmware from the Core's USB-C port — Mesh Deck Junior 1.0

Power It On

The Mesh Deck Junior has two power buttons — one on the battery and one on the Core. Because the battery supplies the power, turn it on first.

Turn the battery on. Long-press the power button on the battery module's edge for about two seconds.

Turn the Core on. Long-press the power button on the Core's top edge (the third of its four top buttons) for about two seconds, until the screen lights up.

To turn off, long-press the Core's power button, then the battery's.

Using Your Mesh Deck Junior

A Mesh build communicates over a long-range LoRa radio — no SIM, no internet — and includes GPS positioning. You type on the built-in keyboard and read on the screen.

The messaging itself comes from the firmware you install — the software running on your device. Two mesh firmwares you can run are Meshtastic and MeshCore. With a mesh firmware installed, you can:

  • Send encrypted text messages across the mesh, fully off-grid.
  • Share your GPS position with your group.
  • Relay for others — every device extends the network's reach.
Install a mesh firmware (see Updating Firmware).
Set your region in the firmware to match where you are — it keeps the radio within the local radio rules for your region.
Type a message and send it — nearby devices on the same channel relay it across the mesh.

Updating Firmware

Your Mesh Deck Junior can run compatible mesh firmware such as Meshtastic or MeshCore. The easiest way to install or update firmware is the Attaky Firmware Store (fwstore.attaky.com), which runs in your browser — no extra tools to install.

You'll need a USB-C cable that carries data (some are charge-only) and Chrome or Edge on a desktop computer. Connect the Core's USB-C port, choose your firmware, and install it — keep the device connected until it reboots into the new firmware.

Only install firmware made for your hardware

Don't unplug during the install, and install only firmware built for your build. Firmware meant for different modules can drive the hardware the wrong way and permanently damage a module or the Core. If you're not sure a firmware matches, don't install it.

Charge and update firmware from the Core's USB-C port — Mesh Deck Junior 1.0

Specifications

SpecValue
SeriesMesh
FormDeck (pocket body + built-in keyboard)
CoreESP32 (Wi-Fi + Bluetooth LE)
Display2.0-inch color touchscreen, 240×320
Keyboard48-key QWERTY
RadioLong-range LoRa, 915 MHz
PositioningGPS
Battery1000 mAh, rechargeable, USB-C
Battery lifeAbout a day of normal use
FirmwareInstalled separately (e.g. Meshtastic, MeshCore)
Dimensions68 × 97 × 29.8 mm (250.5 mm with the antenna up)
Weight156.8 g
Operating temperature0–40 °C (32–104 °F)
Front — 68 mm wide, 97 mm tall, 250.5 mm to the tip of the antenna.Side — 29.8 mm thick.

Safety & Compliance

  • Battery — a standard rechargeable lithium cell. Charge from a normal USB source, keep it out of extreme heat, and don't puncture, crush, or open the module. If the battery looks swollen or damaged, stop using it.
  • Heat & sunlight — use the device between 0 °C and 40 °C (32–104 °F). Don't leave it for long in hot places such as a parked car, and keep it out of direct sunlight and direct UV.
  • Water & moisture — the Mesh Deck Junior is not waterproof. Keep it dry — away from rain, splashes, and damp places — and don't let water get inside.
  • Antenna — like any radio, don't transmit without the LoRa antenna attached.
  • Frequency & antenna — your Mesh Deck Junior ships with a 915 MHz whip antenna and operates at 915 MHz (North America and other 915 MHz regions). Set your firmware's region to match your antenna.

Troubleshooting

  • It won't turn on — charge it first (a flat battery won't boot), then hold the power button for about two seconds (not a quick press). Make sure the battery is switched on too.
  • It won't charge — charge through the Core's USB-C port with a working cable and a standard USB source. (The battery module's USB-C port only works while the device is off.)
  • The Firmware Store can't find your device — use a USB-C cable that carries data (not charge-only), use Chrome or Edge on a desktop, and close any other app connected to the device.
  • A feature isn't working — make sure your firmware matches your hardware; mesh messaging needs the LoRa / GPS module.
  • Messages won't send — make sure the antenna is attached and your firmware's region matches your antenna.
  • Messaging problems — message setup, channels, and contacts are handled by the firmware; see your firmware's documentation.

Support & Warranty

Please visit the Help Center page at the Attaky online shop.

Attaky Shop Help Center →

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