Product Reviews | 5 min | 5940
All cameras in this review are Xiaomi (not exactly built by Xiaomi) and can be connected to the application Mi Home (apple/android). Moreover, you need to select the region to China (Mainland) in the application, otherwise you are not going to find the devices. This has a main disa...
The Allwinner H2+, which integrates four ARM-Cortex A7 cores that can clock up to 1.2GHz, is powering the Orange Pi Zero LTS. The tiny board, which measures just 52 x 46 mm, features 802.11 b/g/n Wi-Fi, Ethernet, up to 512 MB of RAM, USB 2.0 Type-A and a microSD card slot. There is also a 26-pin unpopulated GPIO header along with a 13-pin header for a headphone, USB 2.0, TV-out, microphone and IR signals.
This board is the next generation of the Orange Pi Zero th...
Radxy, the company behind the Rock Pi 4 is back! A couple of days ago, I've received the Rock Pi S (see Fig. 1), a miniature developer board that measures just 38 x 38 mm. The board is powered by the Rockchip RK3308 SoC, which integrates four 64-bit ARM Cortex-A35 cores (Ultra-High-Efficiency). Each of the cores reaches up to 1.3 GHz. The SoC also has a built-in voice activity detector (VAD) for use with IoT and smart voice applications.
Despite its tiny size, the Rock Pi S in...
MicroPython | 6 min | 16188
Last year, I bought an ESP32-CAM board from Banggood and I wanted to use it with MicroPython. The board has an OV2640 without any chip (buffer) between the ESP32 and the camera. There are many implementation for Arduino or directly using Espressif, but I wanted to use MicroPython. Thus, the only solution was to use the I2S interface, but I didn't have time to write the driver. Thus, I put the project on hold. However, last week I was searching between the ESP32 boards that I have,...
The Preempt-RT patching article is one of the most visited articles in my blog. However, that article needed a small update: Raspberry Pi 4B is out there and with Raspbian Buster, a new version of kernel is available: 4.19.y.
I also uploaded the compiled and patched kernel to lemariva/RT-Tools-RPi. You can follow all these steps and compile the kernel by yourself or you can download the files from the repository and deploy the kernel on your Raspberry Pi 4B.
This tutorial is the second of a...
General | 3 min | 1476
Banggood is celebrating its 13th anniversary by launching a grand sales that takes place between the dates August 27th and September 18th (my birthday! :)).
Fig. 1: Banggood's 13th anniversary image on an E-ink screen (tutorial)
Banggood, founded in 2006 and located in Guangzhou, is the fourth largest international e-commerce retailer in China. By running its website www.banggood.com and smartphone applications, Banggood sells more than 500,000 types of products to the United States, Great Britain, Germany, France, Spain, Italy, Australia, Russia, Japan and ma...
Cloud Platforms | 7 min | 5937
The last days, I was looking for an online project management tool with bug tracking system. The best platform that I know is Jira from Atlassian. Jira offers a bug tracking and agile project management, however, it costs between $8.33 and $10 (annual/monthly payment) for the standard version with under 10 accounts. We use Jira in Finealyze and I am very happy with it, but I was looking for a free alternative for myself. Then, I found OpenProject, which describes itself as "the leading open source project management software".
OpenProject is offered in three different ways: Community, Cloud an...
Raspberry Pi | 3 min | 12497
Last week, I published an article about the Raspberry Pi and an e-ink display:
- #Raspberry Pi: an E-Paper display with Widgets (see Fig. 1a).
This time, this tutorial is about processing and displaying images on the 7.5" e-ink screen as shown in Fig. 1b.
Fig. 1a: E-ink Screen connected to a RPi
Fig. 1b: Banggood's 13th anniversary
original image here
Hardware & Software
You find here a list of hardware and software that you could use for ...
Raspberry Pi | 4 min | 9106
The new Raspberry Pi 4B has a lot of upgrades and one of the most important ones is the RAM: You can choose between three models (1GB, 2GB and 4GB). But, another main change is the CPU and the RAM bus: they changed from a Cortex-A53 64-bit (3B+/3A+) to a Cortex-A72 64-bit, both ARMv8, and from LPDDR2 SDRAM...Subscribe to our mailing list: