Here’s the MT50 controller from EpEver, that interfaces with it’s Tracer MPPT solar charge controllers, and gives access to more programming options on the charge controllers, without the need for a laptop. The display is a large dot-matrix unit, with built in backlight. Above is the display on the default
This camera has now been retired after many years of heavy use. Exposure to a 3-year old has caused severe damage to the lens mechanism, which no longer functions correctly. Pretty much standard interface for a digital camera, with a nice large LCD for it’s time. With the front cover
The latest addition to my radio shack is the GY561 frequency & power meter, which has already come in useful for measuring the output power of all my radios. It’s a small device, roughly the same size & weight as a stock UV-5R. Power is provided by 3 AAA cells.
Thanks to Lewis, M3HHY for lending me this one 🙂 Here’s a quick look at a Sainsmart frequency counter module. These are useful little gadgets, showing the locked frequency on a small LCD display. It’s built around an ATMega328 microcontroller (µC), and an MB501L Prescaler IC. The circuit for this
I recently posted about a small analog SWR/Power meter I got from eBay, and figured it needed some improvement. After some web searching I located a project by ON7EQ, an Arduino sketch to read SWR & RF power from any SWR bridge. The Arduino code is on the original author’s
This is a cheap Sigma branded keychain photoframe. User buttons for power & selecting photos are on the left. There are two white LEDs on the bottom edge that function as a torch as well. Front of the unit removed, showing the LCD module. The USB jack is bottom left,
A 5 megapixel digital camera from Vivitar. Visible here is the lens, viewfinder & flash. Rear of the unit showing the LCD & user control buttons. Front frame removed showing some of the internals. Shutter assembly & lens in centre, battery compartment at left. Rear frame removede, showing the LCD