vena lab

OTA Update for RAK Devices

Thu, 23 Apr 2026 00:00:00 +0000

Instructions for Over the Air (OTA) updates for RAK, T114 MeshCore repeaters and room servers utilizing the nRF DFU app for iOS and Android.

AIS Hat for Raspberry Pi 4B

Tue, 21 Apr 2026 00:00:00 +0000

This is a complete guide to setting up your own dAISy Hat for the Raspberry Pi 4B.

AIS Terrestrial Receiver Installation

Mon, 13 Apr 2026 00:00:00 +0000

AIS, or Automatic Identification System, is a tool used by mariners to help see and be seen by other vessels. This system has been in use for nearly three decades and has helped vessels stay accountable and on track to their destinations. AIS uses the VHF frequency band to transmit vessel information to either other ships or to shore-based terrestrial receivers. These receivers then forward the data to one or more aggregation platforms, where anyone can log on and view a vessel’s location in real time.

Heltec V4 Transmit Power

Fri, 10 Apr 2026 00:00:00 +0000

Testing the Heltec V4 shows that higher TX settings don’t always mean more power. The hardware eventually levels off, meaning settings and actual output don’t scale one-to-one.

Meshcore Repeater

Mon, 09 Mar 2026 00:00:00 +0000

A Meshcore solar repeater build using a RAK WisMesh 1W Booster Starter Kit. This design is meant to be mounted to a pole or screwed to an eave or wall.

About Vena

Mon, 01 Jan 0001 00:00:00 +0000

Vena Engineering Corporation is a family owned business based in Watsonville California. We have been in business since 1994.