ZazoLabs

Introduction: A Problem Hiding in Plain Sight Direct I/O (O_DIRECT) has been a contentious feature in Linux since its introduction.

Introduction I’ve been working on a new project that required high-performance UDP load balancing with dynamic weight adjustment.

Introduction: The Illusion of Sequential Execution When you write code, you naturally think in terms of sequential execution: instruction A happens, then instruction B, then instruction C.

A Networking Mystery Over the past two days, I found myself conducting a complete forensic analysis of my network.

The Hardware Testing Challenge When developing hardware, the challenging phase begins after the prototype is designed and PCBs are manufactured.

Why ESP32C5?

Using Compiler and ELF to Avoid Ifdef and Flags Hell for Selecting Runtime Features I was digging into redis source recently and i came to realise some lesser know features of gcc/clang needs some more publicity, so i will write about them here.

Vevor 7 in 1 Wifi to Windy and HomeAssistant For a long time i wanted to install a weather station but since i have to put it on a roof which is easily accessded by outside people i needed something on the budget side.

SDCC Install from distribution repositories but you need at least version 3.7.0.

Catching up with the latest ESP8266_NONOS_SDK_V2.0.0_16_07_19 – got into some issues.

Hi, Dear Reader!

Espressif announced on 05/11/2015 the upcoming ESP32 chip: While the specs are impressive a lot of questions a rise : Support – Espressif is a small company as far as we knew – would they be able to support both chips in the long term?

A Teaser of What to expect from our upcoming WiFi connected 2 channel relay board.

There are some products on the market of smart thermostats/controllers that rely on knowing the user Geo Location to act “smart” – is this really smart?

While working on a secure cloud for the gang of the esp8266 based devices we are developing we need SSL – real and secure.

Hi, I have signed the IoT Design Manifesto – if you are into IoT.

During the past weeks i’ve worked on getting the FOTA upgrades work on the 2MB boards by Olimex.

Engineering Internet Of Things Secure network for our upcoming IoT service.

Which goes where – when using a bootloader for FOTA.

Finding the Right Development Board When developing IoT applications with the ESP8266, two key requirements immediately become apparent: you need sufficient flash memory for your application and firmware, and you need a board that fits comfortably on a br…

Hi, A simple i2c driver for the Microchip’s TCN75A thermometer – supports up to 8 thermometers.

After a lots of lots of wasted hours debugging an I2C driver it came out that the noise from the connected cheep USB2TTL converter is way too much.

I’ve got a new tool at the LAB!

In case you’ve missed it!

When repairing stuff with a motor the first question is: “Is it the motor or is it the board that failed?”

While working on a current project i’ve faced an issue with code reuse.

$ open devlog I’ve back imported footprints for a .cmp file and I’ve misunderstood kicad’s question about the imported footprints visibility, so all went visible.

Spend last weekend trying to make apache with proxy_wstunnel to work.

The esp8266 chip is made by Espressif Systems.

Here you will read about the latest research and development at the lab.

Current focus is on the Internet Of Things hype.

R&D Blog Here you will read about the latest research and development.