555 Timer – Servo Tester
A recent little project. Details Here.
RC Planes
RC LED Flasher
Shop item: HERE Details: HERE I decided to update my 6-channel RC LED flasher. The original design has been working well but had only one flash pattern and only sampled the PPM at the end of each cycle making it appear slow to respond to control changes. So after a […]
GPS Modules and Google Maps
Confusing GPS Formats I have several GPS receivers that provide coordinates like these: 4107.9095 17502.6079 : embedded module 4107.8780 17502.6300 : gps stats phone app 4107.8861 17502.6290 : Navman usb mouse gps Google Maps doesn’t like this format, so you have to change it slightly. It’s a GPS format but […]
Cloverleaf 2.4GHz antenna
I have been using the 5.8GHz 200mW FPV system from Hobby King rather than my original 2.4G system for a while now. So I was looking at the small 10mW 2.4G mini-fpv transmitters I built over a year ago and wondered how they would work with a cloverleaf antenna. For […]
RC Reliability 1
This is a bit of a work in progress and will be updated occasionally. RC – Radio Control Used for all sorts of applications but mostly thought of for model control; planes boats, cars etc. This is about model control and references New Zealand frequencies but the theory can be […]
RC Lost Model Tracker Update
I’ve been using the tracker in my FPV plane for a while now and it has been working as expected. A couple of times I’ve forgotten to replace the disarm jumper on landing which just means the unit starts transmitting on the drive home. Although it’s sealed inside a foam […]
FPV Helical Antenna Build
Based on the build guide from IB Crazy on RC Groups I built a Helical antenna for 5.8GHz FPV. Assembly All up it took almost 3 hours with a few breaks waiting for glue to dry. The reflector is double sided copper laminate (because I had a couple of scraps), […]
A 3 cell LiPo in a RC Transmitter 2
Can a 3 cell LiPo be used safely in a transmitter that was designed for a 8 cell NiCad or NiMh pack? It will operate fine from a 3 cell Lipo. The main advantages of the LiPo are larger capacity and very low self discharge. The biggest danger is leaving […]