IoT NodeMCU ESP8266

Posted on 5th Jul 2017 22:46:39 in IoT

I recently brought 3 of these NodeMCU dev kits for playing around with, building some remote sensors over WiFi. The options are huge with 10 GPIO pins to play with.

NodeMCU + DTH22

I2C - Sensors

PWM - Senors

1 wire - Sensors

GPIO - connect relays etc..

Covers off most sensors you would want to connect.

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8 GPU Ethereum Mining Rig

Posted on 16th Jun 2017 10:00:07 in mining, cryptocurrency

Using 8 x Sapphire Nitro+ RX580s to build a Ethemeum mining rig.

M2 to PCIe x4

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How to Unlock the NVMe Performance on the Lenovo Y700

Posted on 23rd Feb 2017 08:14:31 in SSD, NVMe, Laptops, cryptocurrency

In previous blog posts about the Lenovo Y700 where we added a high performance NVMe SSD in my case a Samsung 950 pro, others have since added Samsung 960 evo's and pro's. The draw back was that performance was capped at ~1600MB/s which leaves a fair amount of performance unavailable on these high performance SSD's. The issue was tracked down the DMI link speed being set to PCIe 2.0 speeds, this was what was causing the performance cap or around 1600MB. 

After Lenovo refused to change the setting, their is finally a work around to set the DMI link to full speed (PCIe 3.0) this fully unlocks the performance for these SSD's. Thanks to our friends over at MDL.

The unleashed performance of the 950 Pro 256GB (rated at 2200MB read 900MB write)

Unlocked 950 Pro performance

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Raspberry Pi Resistive Soil Moisture Sensor

Posted on 20th Dec 2016 12:30:27 in Raspberry Pi, ARM

One of the drawbacks of watering the garden on a timer basis is that you inevitably end up watering when you don't need to like after it has rained. This always bugged me as my rain water storage of 2000L would always run out over summer. So anything i can do to water more intelligently and conserve water is a bonus.

Watering the garden based on need, measuring soil moisture to make the watering decisions.

The sensor

Soil Moisture Sensor

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Raspberry Pi and La Crosse TX20 Anemometer

Posted on 16th Dec 2016 15:55:30 in Raspberry Pi, ARM

How i connected the La Crosse TX20 Anemometer to my raspberry pi. I had been given a La Crosse weather station but with it not being internet enabled it was not really of much use to me. Enter the IoT why not connect it to a raspberry pi and internet enable it.

 

TX 20

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