====== Deenlai FSH710 ======

This enclosure is rather small, thus fewer Meshtastic boards are able to fit inside. So far, I have only tested the Heltec WiFi LoRa 32, which is one of the smaller boards available.

  * Internal Dimensions: 46 mm × 34 mm × 25mm

===== Purchase Link(s) =====

  * [[https://item.taobao.com/item.htm?id=573777143173|德恩莱 (Deenlai) FSH710/2P-0 (Taobao)]]

===== Heltec WiFi LoRa 32(V3) =====

:!: Double check the polarity and voltage of all wiring, the Heltec board will be damaged above 6 V or by any reverse polarity supply.

==== Tools Required ====

  * Philips #1 or #2 screwdriver
  * Soldering tools
  * Flush cutters or a good scissors

==== Extra Components Required ====


  * 1× U.FL to SMA pigtail
  * 1× [[https://www.thingiverse.com/thing:6596531|SMA Jack Adapter for Deenlai FSH710 IP66 Junction Box]] (3D print)
  * 1× [[https://www.thingiverse.com/thing:6608890|Heltec LoRa32 V3 Retaining Post for Deenlai FSH710 IP66 Junction Box]] (3D print)
  * 1× DC-DC buck converter, fixed voltage, e.g. [[https://detail.tmall.com/item.htm?id=695010587729|DC-DC降压电源模块 输入6.5～16V转5V 稳压模块足4A (Taobao)]]
    * 3.3 V fixed voltage preferred
    * 5 V fixed voltage if you need battery charging
  * ≈24 AWG wire
  * Double-sided foam/VHB mounting tape

==== Assembly ====

  - Remove nut and washers from U.FL to SMA pigtail
  - Insert U.FL to SMA pigtail into SMA Jack Adapter and install and tighten the nut and washer
  - Unscrew nut and remove one of the cable glands from the FSH710 Junction Box
  - Re-using the gland nut and rubber O-ring, install the SMA Jack Adapter into the FSH710 Junction box
  - Route the external power wire into the remaining cable gland, optionally tying a knot to prevent pull-out through the gland
  - Solder the exterma power wire to the input of the DC-DC converter
  - Power up the buck converter and double check the output voltage, then disconnect from power
  - Mount the Heltec board, then measure and cut the wire length required from the 3V3 or 5V pin to the DC-DC converter output
  - Solder the output of the DC-DC converter to the Heltec board (outside the enclosure, where access is easier) and trim all excess wire length behind the pads off
  - Connect U.FL to SMA pigtail to the Heltec board
  - Place mounting tape on the DC-DC converter
  - Mount the Heltec board and DC-DC converter into the enclosure
  - Power up and verify Meshtastic boots
  - Ensure all wiring is within the internal cavity of the junction box and will not get crushed by the case cover
  - Install the cover of the FSH710 Junction Box and tighten screws

==== Pictures ====

{{projects:amateur_radio:meshtastic:device_enclosures:photo_2024-05-05_17-44-57.jpg?400|}}{{projects:amateur_radio:meshtastic:device_enclosures:photo_2024-05-05_17-44-59.jpg?400|}}