Heltec V4 mini-case ESP32S3 + SX1262 Node

Minimalist Snap-Fit Case for Meshtastic Node (Heltec WiFi LoRa 32 V4)

Welcome to the ultimate tiny enclosure!

UPDATE!! SMA antenna connector version added ! 

This is an ultra-compact, no-screw design for a Meshtastic node using the Heltec WiFi LoRa 32 (V4) board. My goal was to create the smallest possible case that's still protective and functional—perfect for pocket carry, hiking, or off-grid adventures without adding bulk.

Key Features

• Snap-together assembly: No screws, tools, or fasteners needed—just press-fit halves for quick setup (and easy disassembly if needed).
• Minimalist & lightweight: Keeps your node sleek and portable.
• Antenna support: Designed specifically for the Heltec Kit LoRa antenna (version with  SMA connector will be soon).
• Button access: PRG button is extruded for better clicking and reboot button slightly hidden to avoid accidental clicks .
• OLED visibility: Clear window for the screen.
• Protection: Shields your board from dust, bumps, and everyday wear while maintaining full functionality.

Required Parts (Super Simple!)

• Heltec WiFi LoRa 32 (V4): https://heltec.org/project/wifi-lora-32-v4/
• Heltec Kit LoRa Antenna (included in their bundle or buy separately)
• No internal battery!!! you need to plug in external power source (USB Type-C)

Assembly (5 Minutes or Less)

1. Insert the Heltec V4 board into the main case body (align with the cutouts).
2. Snap on the antenna connector.
3. Attach the lid—bend lid and slide it clicks securely into place.
4. Done! Plug in power-bank and start meshing.

Printing Tips

• Material: PLA or PLA Matte (matte for extra grip).
• Supports: None needed.
• No infils
• Layer height: 0.2mm for smooth finish.
• Print time: ~60 minutes on my BambuLab A1 printer.