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Heltec LoRa32 V3 Meshtastic Case

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A2L

0.2mm layer, 2 walls, 15% infill, with supports
0.2mm layer, 2 walls, 15% infill, with supports
2.3 h
1 plate
4.8(12)

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Description

Printing Recommendations:

  • Use adaptive layer heights (up to 0.2mm max) for optimal surface quality and faster print times.
  • Tree supports recommended for clean and easy support removal.

Components:

  1. Heltec LoRa32 V3
  2. NEO-6M GPS Module NEO6MV2
  3. SMA Female to IPX UFL/IPX Extension Cable
  4. GY-BME280 (3.3v)
  5. 3.7V 974058 3000mAh Lipo Polymer Lithium Battery
  6. EC11 rotary encoder
  7. Mini Vibration Motor DC 3V
  8. Active buzzer  3V
  9. HY-4P (for M5Stack CardKB Keyboard)
  10. Antenna (in my case 433MHz soft antenna)

Wiring:

Encoder AHeltec 5
Encoder GHeltec GND
Encoder BHeltec 6
Encoder Sw1Heltec 7
Encoder Sw2Heltec GND
Buzzer +Heltec 45
Buzzer -Heltec GND
Vibro +Heltec 40
Vibro -Heltec GND
GPS VCCHeltec 3V3
GPS RXHeltec 48
GPS TXHeltec 47
GPS GNDHeltec GND
BME280 VCCHeltec 3V3
BME280 GNDHeltec GND
BME280 SCLHeltec 42
BME280 SDAHeltec 41
HY-4P BlackHeltec GND
HY-4P RedHeltec 3V3
HY-4P YellowHeltec 41
HY-4P WhiteHeltec 42

 

It is possible to use a 2N2222 NPN Transistor to enable/disable the GPS module.In that case, the GPS connection needs to be modified as follows:

GPS VCCHeltec 3V3
GPS RXHeltec 48
GPS TXHeltec 47
GPS GND2N2222 C
2N2222 BHeltec 46
2N2222 EHeltec GND

Assembly Hardware:

  • 3 x M3x5mm screws for securing modules inside the case.
  • 2 x 2x8mm self-tapping screws.
  • 1 x M3x15mm screw for the belt clip.
  • 1 x M3x8mm screw and 1 x M3x15mm screw for assembling the enclosure.
  • 6 x M3x6mm heat-set inserts for reinforced threaded mounting points.

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