What did you build today (Pictures) ?

[berkseo]

@berkseo
https://translate.google.ru/translate?hl=&sl=ru&tl=en&u=https%3A%2F%2Fmysku.ru%2Fblog%2Fdiy%2F72557.html

Original (code without Google formatting): https://mysku.ru/blog/diy/72557.html

[berkseo]

Test nRF52840 with Mysensors on Arduino IDE
https://youtu.be/dLXDBjsmVhE

based on source - https://translate.google.ru/translate?sl=ru&tl=en&u=https%3A%2F%2Fmysensors-rus.github.io%2Fnrf52840-The-first-steps%2F

[Fanfan]

Well, Design of an home made electronic kit for my 10yo daughter to teach her by example. on 74HC595 (shift reg), 9 leds, 4 push buttons, some wrapping wire, ... We managed to build it, it works, with some bad contacts, but it works, she enjoyed the thing and the time spent together. Here is the schema and the pictures. I strongly invite parents to build it with their children, easy and fun. !

[bjacobse]

@fanfan
Looks nice, and I love the idea that you spend time and knowledge to your kids :-)
but looking at the current budget it seems that you are above the rated current consumption for the 74HC595, just so you don't wonder in case it burns when several LEDs are ON at the same time

Input clamp current, I IK (V I < 0 or V I > V CC ) ±20 mA
Output clamp current, I OK (V O < 0 or V O > V CC ) ±20 mA
Continuous output current, I O (V O = 0 to V CC ) ±35 mA
Continuous current through V CC or GND ±70 mA

Data from here:
https://www.sparkfun.com/datasheets/IC/SN74HC595.pdf

[berkseo]

@berkseo
https://translate.yandex.ru/translate?url=https%3A%2F%2Fhabr.com%2Fru%2Fpost%2F450860%2F&lang=ru-en

[Hanane Amrani]

@dbemowsk I've been gambling with an Adafruit AudioFX board and cobbled together this annunciator. Eventually it will likely be a MySensors node to play alarms or different sounds. It is using a reasonably-priced transportable speaker to play the sounds. I were given it to work with my doorbell button node today.

[FotoFieber]

Prototyping my netatmo replacement device. It has an led strip that can simulate a lighouse, a rainbow or a fireplace...
(If not used only for fun, it should warn you, if there is too much CO2 in the air.)

[mfalkvidd]

Today I have spent a few hours trying to eradicate the confusion between MySensors' different message acknowledgements. See https://github.com/mysensors/MySensors/issues/1103 and https://forum.mysensors.org/post/34263 for details.

 core/MyGatewayTransport.cpp                |  11 ++++++-----
 core/MyMessage.cpp                         |   8 +++++++-
 core/MyMessage.h                           |  31 ++++++++++++++++++------------
 core/MyOTALogging.cpp                      |   2 +-
 core/MyProtocol.cpp                        |  16 ++++++++--------
 core/MySensorsCore.cpp                     |  41 ++++++++++++++++++++-------------------
 core/MySensorsCore.h                       | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------
 core/MySigning.cpp                         |   4 ++--
 core/MySigning.h                           |   2 +-
 core/MyTransport.cpp                       |  20 +++++++++----------
 core/MyTransport.h                         |   4 ++--
 examples/SecureActuator/SecureActuator.ino |   2 +-
 12 files changed, 147 insertions(+), 108 deletions(-)

I have also updated https://www.mysensors.org/download/sensor_api_20 to use echo instead of ack when describing the echo function. That page didn't have information on the return value for send, present, reqestTime, etc so I added info on the return value as well.

Reference: https://github.com/mysensors/MySensors/pull/1292

[mfalkvidd]

When doing the change above, i noticed that after I created https://github.com/mysensors/MySensors/issues/1107 the number of undocumented MySensors keywords has more than doubled!

The plan was to let the MySensors butler check for missing keywords as soon as the few remaining keywords were documented. If I add the check on the existing code, the butler wouldn't allow any commits which would hinder development. But since no-one has documented the missing keywords in over a year, I decided to blacklist the missing keywords and add the check anyway. The new check will give developers a list of new missing keywords, if they add any, so they can be documented.

Reference: https://github.com/mysensors/MySensors/pull/1293

[mfalkvidd]

I've also submitted documentation updates for clarifying MY_RX_MESSAGE_BUFFER_FEATURE limitiation on esp8266 and renaming RadioSetting to TransportSetting for https://www.mysensors.org/apidocs/group__RadioSettingGrpPub.html

References:
https://github.com/mysensors/MySensors/pull/1296
https://github.com/mysensors/MySensors/pull/1295

[franz-unix]

Today I have finished my d-diot board:

The board is part of the d-diot project (see my other post)

[Fanfan]

My 3V Node (Atmega328P 1MHz), embedded NRF24L01+ with ceramic antenna, ATSHA256, AT25DF512, BME208, LED, Battery monitoring, ICSP, FTDI, Castelizable, Breadboardable.

[monte]

@fanfan nice! How is the signal compared to stock nrf24 modules? How much for antenna?

[Fanfan]

@monte A little bit less, but not a lot. I still need to improve the PCB (better castelization tracks, remove diodes, ...) and this should be ready to be copied/used.

[berkseo]

Today finished with the HW part of the new device

https://youtu.be/X1_tU14Vo5A

[Laran]

@mfalkvidd
Looks impressive!

[berkseo]

Today finished new device:

Video:

https://youtu.be/DVpDjXjeUKg

[franz-unix]

Today.... This MQ2 gas sensor with Neopixel RGB lamp on top and a capacitive touch button under the circle mark on the front.

It is part of the d-diot project. The files of the 3d-printable case are available in Thingiverse.

The firmware is available here, the wiki page is under construction.

In the next weeks I will try to print it in wood... Just to increase the WAF :wink:

[berkseo]

My new micro-sensor water leak ready. Powered by NRF52832-CIAA

cr2032, ... ~3μA consumption

[bjacobse]

Love to to watch all you creative designs :-)