You may recall some time ago I reviewed some displays from 4D Systems – using an ESP8266 together with a touch display – and very nice too. Well, the company just sent me one of the new IOD-09 displays and it is the cutest thing you’ve ever seen. You will…
FeelTech FY6600 Waveform Generator
Regular readers will know we just looked at a DIY signal generator able to generate sine, triangle and square waves. Breadboard, wires, you name it… Well, this is NOTHING like that. If the simple DIY generator of a previous blog is not to your liking you might want to consider…
VL53LOX Distance Measurement
The VL53LOX usually comes as a tiny board complete with regulator and is an I2c device capable of measuring short distances. I thought I’d put it to the test. The proper description which sounds very impressive is “Time of Flight (ToF) Laser ranging Sensor” – really? Well, let’s see what…
Boxes Galore
Nothing special – just boxes. Those with working 3D printers please ignore me. For the rest… I just took delivery of 20 boxes at less than 50p each and I think this is the best box purchase I’ve ever made – got them from Banggood though I’m sure you can…
ZeroPlus Logic Cube
I recently took a look at the ZeroPlus Arduino Starter Kit – well, this logic analyser is not a starter version! This particular model, the Lap-C 322000 has 32 channels and a bandwidth of 75Mhz. It has 64Mb memory, 2Mbit per-channel depth and is the top of the line in…
Arduino for Beginners
We rarely cover projects for beginners in the blog and I guess that’s because most of the people I know who are into technology have been there for a while. But as I found out when I first started getting into Linux a couple of years ago, it is awfully…
DPH5005 Power Supply
Ruideng just sent me their latest power supply and case… or rather, the kit. The control board is assembled as is the display board. You get case, fan, switch, fan PSU and bags of nuts, bolts, washers and wire. What could possibly go wrong?
ESP8266 and ATMEGA2560 Mega Board
You may recall my blog entry about my “universal peripheral” – using the little Arduino Nano or similar clones with an ESP8266 – with the former providing GPIO via an I2c connection. Well, that led me to getting this little number from Banggood – the Wemos Atmega + WiFi R2…
AD584 Precision Reference
I’ve been waiting for this little item for some time now… and today it turned up – a very neat Perspex box that requires micro-usb – and which gives out on demand (button press) 2,5v, 5.0v, 7.5v and 10v. Accuracy? It is hand-written on the back. The unit outputs the…
Tarantula 3D Printer
Tevo Tarantula Printer I’ve been putting off updating this one as I had some issues – but finally decided to release a part 1 video of the package opening and starting construction. So this is about the low-cost Tevo Tarantua Prusa I3 3D Printer Kit from Banggood with 200x200x200m printing…
Poor Man’s Signal Generator
I can’t remember how, but when messing around with scopes and awaiting my new signal generator (more of that in the coming weeks), the AD9833 Programmable Waveform Generator came to my attention. Take a look at this Ebay link. This would you believe is a signal generator. Without those connectors…
Korad KA3005D Bench Supply
Just a quick one here as it’s all in the video below. This is about the Korad KA3005D Bench Power Supply – a nice solid unit able to provide up to 30v at up to 5a. I had visions of some lightweight switched job – but no – a honking great…
INA219/ESP8266 and Node Red
In a previous blog entry we were playing with the INA219 voltage and current monitor. Here I team the little board up with the ESP8266 and Node-Red. In this entry, I have teamed up the INA219 with my ESP8266 code which already has a driver in for this chip and…
The BitScope Mini Oscilloscope
Let’s face it, if you want an oscilloscope and logic analyser that fits in your shirt pocket, your choices are a tad limited. Regular readers may recall that way back in 2016, I did a short review of the BitScope Micro, a VERY portable circuit board which, coupled with suitable…
LiPro Balance Charger
Every time I see a video about charging or testing batteries, I tend to see one of these shiny blue units (or similar) – so I thought it was about time I got one! The LiPro Balance Charger (or rather, a clone as we will see later) is pocket sized…
OWON SDS1102 Oscilloscope
I thought as the weather is so very bad here in the Northeast of England right now, I’d spend some time reviewing equipment – so I’ve a load of stuff coming in the next few weeks – first off is the Owon SDS1102 oscilloscope.
INA3221 v INA219
Voltage and current monitoring The INA3221 or rather one of the boards based around it, allows for a single power input and up to 3 power outputs –each monitoring voltage and current and all done via I2c. You can (almost) think of this as a triple INA219 – the bidirectional…
A busy Week
It has been a busy week this week – with lots of new things happening. Firstly, there is a brand new update to the RFLINK software, IMHO the best software around for decoding and transmitting signals for a wide range of RF devices – such as weather stations and remote…
DPS5020 and DPS3003 PSUs
Firstly, the DPS5020 power supply comes in 2 parts, the main controller and a front panel. You get the pleasure of fitting it in a box – and supplying power. So it is “kind of” DIY. In this case you get a programmable power supply able to give you up…
EM125 Handheld Scope
It was just like Christmas this morning. After a few days of no posty, a couple of packages turned up for me. Inside one of them, the EM125 Handheld Digital Oscilloscope. This large-pocket-size scope runs for up to 10 hours on an internal rechargeable batteries, has 25Mhz bandwidth and also…