Archive for the ‘Uncategorized’ Category

nano_iot (Part 2)

Part 1, 2 This nano_iot_network is so exciting and time consuming that I am neglecting my publications which may soon tend to be a road movie across the world of IoT. It seems to me that this project is a digest of all the matters I covered over my carrier. I gain from this experience […]

Happy new year

Imagine one moment if you would not have wished a happy new year on January the 1rst 2020 to your relatives ? The past year would have been worst!So that I will not refrain myself from wishing you a happy year. The future is unlikely however my motivation are still high to bring my contribution […]

Blog of the day

Once again, while thumbing through the net, I found this very exciting blog: . To try it is to adopt it ! Once again I love the clean presentation, well explained, documented and illustrated with plenty valuable information. Thanks a lot for the time and energy spent at helping unknown makers all around the […]

HC-05 Bluetooth module (Part 2)

Part 1, 2, 3 Once the hardware is under control, let’s focus on the software. By default, the HC-05 modules are configured in slave mode and they are discoverable by any master and consequently linkable by any master (eg. A PC, a smartphone or an HC-05 module configured as master). This configuration is obviously the […]

HC-05 Bluetooth module (Part 3)

Part 1, 2, 3 Now that we have the hardware and that we understand the fundamentals of module programming, let’s build a simple network. In this example, we will use a master and a slave module, each of them plugged onto a “basic platform” (see part 1). The slave module shall be configured using the […]

Blog of the day

While tumbling through the net, I mean through the jungle of publications, I found the oasis of the maker ! I like very much the look and feel of Last Minute Engineers web site: nice pictures, well explained and documented topics. Pinouts and code samples will help you learning by doing. One can be fed […]


Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 First serious failure…After exactly 4 years of regular use, I experienced the first failure which is due to an aged component. Although Peek is a very strong material, it did not sustain any longer the thermal strength which it endured for years. This critical part is responsible for guiding the […]

HC-05 Bluetooth module (Part 1)

Part 1, 2, 3 Many web pages, posts and topics can be found on the web, however it took me quite some time to gather enough information to have a clear picture about the HC-0x series Bluetooth modules. Although they are outdated by low power BT modules, these modules are still a product of choice […]

100 !

This picture illustrates my production of facial masks frames of the Easter week-end!I never produced that many parts of the same sort using my brave old Vertex printer. So far, I experienced only 2 failures:– 1 part was poorly printed showing gaps and lacks of filament. This problem did occur any more after a careful […]

By all means

By all means let’s stop the covid-19! The heroes are those who stay home, in small flats, with nervous kids, noisy neighbors, low stocks of toilet paper and plenty kindness through the networks. The action men and women keep the ball rolling, feed us, power our phones and care about us. They deserve as much […]