@alowhum No of course the MY_TRANSPORT_WAIT_READY_MS is not sufficient to achieve your goal, you have to tweak your code. The idea of @electrik is a good one.

I have faced a similar problem with an MQ2 gas sensor that implements a visual (LED) and acoustic (Buzzer) alarm when a gas leak is detected. The visual and sound alarms, that can work also in absence of the MySensors network, can be activated or deactivated with a physical button on the node or also in the controller with two dedicated switches (S_BINARY, V_STATUS).

The code is here.

One interesting option that you can consider is that if you define a constant at the beginning of your code like for example

#define PRIVACY_MODE

and the you wrap all of your privacy related code inside an #ifdef statement

#ifdef PRIVACY_MODE
sendWithPermission();
#endif
#ifndef PRIVACY_MODE
send();
#endif

the compiler will compile only the relevant part of the code, saving some space of your MCU memory.
This allows also you the easily disable and enable the functionality with a firmware flash.

You can also save the privacy state to EEPROM if you want to keep your setting across power cycle.

Hi,

check the MY_TRANSPORT_WAIT_READY_MS, maybe is suitable for you needs.

I use this directive to start a sketch, even if the MySensors network is not available

Found a solution! It is quite easy with the custom board features of PlatformIO.

I wrote a brief tutorial here.

Tested with a Pro Mini 8 MHz 3.3V and FTDI programmer.

Unfortunately I don't have here a 16 MHz 5V devices to test

Hi,
Is there someone that use PlatformIO to write the code for MySensors nodes?

I have discovered it recently and it has some advantages respect to the Arduino IDE, but I have not found, at least in a vanilla installation, the support for Arduino boards with MYSBootloader.

I have not found anything with a basic google search, so maybe this is the right place to ask.

Hi,

as a part of the d-diot project below a picture of the GP-PCB nano.
Front:

Rear:

The aim of the pcb is to to offer an easy way to build a reliable and compact MySensors node based on Arduino Nano and an NRF24L01 radio module.

The main features are:

• Small dimensions: 55 x 55 mm

• Socket for NRF24L01 radio module with dedicated capacitor

• MYSX connector v.2.6

• Radio traffic LED

• Multiple and flexible power options (5-23V) with the Mini-360 buck converter and jumper J2

• Support for a photoresistor to measure the light level

• Buzzer (beeper)

• Support for DHT22 temperature and humidity sensor

• 4 channel RGBW LED controller

• Dedicated 3.3V voltage regulator AMS1117 (optional) to power any type of radio module. The rail that powers the radio module is selectable with the jumper JP4

• Additional PIN to power external devices

• Support for ATSHA204 IC

• Support for DC Barrel Jack

• Mounting hole for a M2.5 screw

The Gerber file, schematics and the entire Kicad project are available for download here.

The code, built with PlatformIO, is part of the project and supports the following sensors and actuators:

• Up to 3 PIR sensors

• MQ2 Gas Detector with sound alarm and visual alarm, if you install a buzzer and a Neopixel LED strip

• Buzzer

• Photoresistor to measure the light level

• Button with 3 different pattern recognition: short press, long press, double click

• RGBW LED controller

• Addressable WS2812 RGB LEDs (Neopixel)

More details in the wiki page.

If someone is interested I can upload the board design files in openhardware.

@tbowmo Thank you for your effort! Now my turn... the whole schematics of the d-diot board is available for download here!

Of course I have to learn more and do some testing before implementing in the d-diot board the constant current source circuit that you suggested, but this a great option to eliminate the MP1584 (that one day may become unavailable on the market) and to lowering the cost. For the same reasons my plan is to substitute the step up module MT3608 with a boost converter circuit, made from standard passive components (like this).

In any case, if someone else needs to make an universal IR remote with a Raspberry Pi, the configuration of the GPIO pins of the Raspberry is here, while the steps necessary to configure LIRC and lirc_web are here.

The final results is this:

Here the guides to play with the IR gateway (add a remote, clone a remote, Home Assistant integration)

@mslv129jdg How do you have installed mosquitto? if you have installed it with the standard

sudo apt install mosquitto mosquitto-clients

then, the server starts automatically when you boot your Pi.

Mosquitto is a server program so it is normal that you don't see any new window. See this if you want to know how to test your MQTT server.

@tbowmo

I did not know the constant current driver, but a circuit like this one, can be implemented in the next revision of the d-diot board, in place of the MP1584.

@tbowmo Thanks for your technical feedback, really appreciated!

Let me explain some points:

• It adds extra complexity. Yes, but the board comes ready to use, so it is not a problem for the end user and the cost of the MP1584 is about 1$... Not too much respect to flexibility that it brings (see point 2)

• vFwd varies a lot, so 1.5V is not ideal for all IR diodes (it varies from 1.2V to 2V). The output voltage range of the MP1584 is adjustable (0.8 - about 5V), so you can use any LED you want. The suggested 3W IR LED (this one) has a great range respect to the normal IR led that are used in the numerous tutorial that you can find around. In my experience the range of one or two of this normal IR LEDs is about 1 meter or less.

• How is the response of the switchmode, if you pulse high current output at 38Khz, or 455Khz? (those are the normal frequencies used by IR remotes). I'm not so expert in electronics to give you a detailed answer, but the final results is that the circuit works. I have tested it with my Samsung smart tv (see this) and all the commands are well recognized by the TV.

• Extension cable Remember the WAF if your plan is to run a very long cable from the USB port to the additional LEDs The main idea is that the additional LEDs (maybe with their own 3d printed case) have to be placed near the hub to cover a wider angle (360°). For long distances maybe a simple and cheap DIY IR repeater is better.

Regarding the LEDs in series with a resistor (if needed), it was an option that I have considered but rejected for this two reasons:

• If only one LED burns out your transmitter does not work at all

• A resistor is a waste of power, especially if your current is not negligible

Please note also that if you want to power your LEDs with 5V, you can do that simply not installing the MP1584 and then bridging the input + and output + holes of the footprint with a wire.

10pcs 3W high powe 940nm Infrared LED Light IR led for NIGHT VISION CAMERA light

$5.45

32 available

I agree you have centered all the critical points:

• Ordering a pcb, all components and then soldering it is quite a barrier for "ordinary" people. Absolutely true! In fact my plan is to start a second Kickstarter campaign to sell some pre-assembled boards, if there are enough people interested and the feedback form the first campaign (not assembled pcb) is good. I have opened the d-diot website Friday, so the entire project is still a baby and I don't have a clear view of the next steps . In any case a final goal could be also a full finished product (case + board + Raspberry). For the ordinary user this will mean "plug in, take out your smartphone and play"

• What keeps you from having it open source and still sell assembled boards? In this moment only one "irrational fear" (please note the "" ).... loosing the possibility to keep the project sustainable and self-sufficient from an economical point of view (chinese clone, in other words). But I agree opening the hardware will improve and speed up the development and, at the end, the quality of the final product. The open source model works and this is a a fact (see Linux and Arduino). I think that a viable solution for me in this moment is to open at least the schematics; I'm evaluating this possibility from two days.

• 90% would buy a pre-made board from you. Yes I believe that too. Unfortunately the final price of a fully assembled board will be not so low, probably around 40-50€ (estimated), because today the assembly is not so cheap as the pcb manufacturing and the value of the components + radio modules is around 25€ (see here). So I prefer to keep also the DIY way open. Of course the price of a fully assembled board will drop with a massive production.

Sorry for the long post but I think that there are great possibilities around the open source home automation, which is a good thing also for privacy and security, especially now in the cloud era, but, in my opinion, the problem is that the various projects (and there are many!) are fragmented and not integrated in a simple and plug&play solution for the normal user. In fact d-diot is born from this consideration.

I have not talked about the other ideas / consideration to improve the experience of the others makers and that can generate some incomes to support the development, but for this post, I have already wasted enough bits with my bla bla bla, so I will proceed, if some other people are interested.