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EasySensors / SwitchNode

Coincell powered Switch Controller. Atmega328p + RFM69HW 433 MHz radio on-board. Hardware debouncer. Arduino IDE compatible. IS4B2450
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Where can I purchase more? #2

Open MACscr opened 6 years ago

MACscr commented 6 years ago

Seems your board is no longer listed on Tindie after I bought one to test it. Are you not selling any more of them? If not, I just wasted my time as I don't want to spend a bunch of time trying to get this to work if I can't get a few more of them.

yurysvirida commented 6 years ago

Hi Mark,

Sorry for not listing, I have 100+ boards and received different frequency transceivers last Friday, so I have now all options. Check the Tindy and let me know how many do you need.
Any questions for implementing them - just ask!

Thank you very much!!!

MACscr commented 6 years ago

Found them again. Thanks. No im waiting on the proper batteries to come in, can i use the power from my FTDI adapter to power it? Seems mine does 5v though unless i resolder it. Guesing it cant handle that 5v. Also, would have been nice if the headers were already there for programming and we didnt have to solder pins on it for that as well. That is unless there is a default firmware already on it that we can somehow configure OTA, but I dont think thats a possibility. Right?

yurysvirida commented 6 years ago

in my README.md file I mentioned this one:

image

the datasheet claims RFM 69 might die if it exposed more 3.9 volts. " Exposure to absolute maximum ratings for extended periods may affect device reliability. " to be honest, I did same - put 5 volts instead of 3.3 many times during testing and designing and all modules survived. so I guess it is 5V "tolerant" for some period of time. but definitely you need 3.3 or 3 volts

re: would have been nice if the headers were already there for programming

male or female?

re: That is unless there is a default firmware already on it that we can somehow configure OTA, but I dont think thats a possibility. Right?

it is OTA ready. what code\lib do you use?

MACscr commented 6 years ago

Male or Female would be fine. Male would be preference for my FTDI adapter though.

I don’t have any code prepared yet. I guess it couldn’t really do it without having a 433mhz transceiver setup on my actual system that has the arduino ide on it though, right?

On Jan 28, 2018, at 6:48 AM, Y notifications@github.com wrote:

in my README.md file I mentioned this one:

the datasheet claims RFM 69 might die if it exposed more 3.9 volts. " Exposure to absolute maximum ratings for extended periods may affect device reliability. " to be honest, I did same - put 5 volts instead of 3.3 many times during testing and designing and all modules survived. so I guess it is 5V "tolerant" for some period of time. but definitely you need 3.3 or 3 volts

re: would have been nice if the headers were already there for programming

male or female?

re: That is unless there is a default firmware already on it that we can somehow configure OTA, but I dont think thats a possibility. Right?

it is OTA ready. what code\lib do you use?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

yurysvirida commented 6 years ago

ok. can solder male headers.

The switch comes with dual optiboot and JDEC flash chip. You only need any second RFM69 433Mhz based controller to send FOTA stream. Depend on the lib you will use, check these articles please.

https://www.mysensors.org/about/fota and https://lowpowerlab.com/guide/moteino/wireless-programming/

Worth mentioning:

  1. It is necessary somehow to wake the switch and keep it awake during FOTA. I send them to sleep in my code. did not use much FOTA functionality in the switches.
  2. Although 2450 battery is quite capable but to my observation MySensors based code FOTA takes few minutes to send and that eats around 3-5% of the battery capacity.
santicastro commented 4 years ago

Is the PCB design public or sold separately? I'd like to test 1 device and if it fits my interests then I will make 15-20 to replace all the switches on my home. I also have some rfm69cw modules to use. In tindie there is only 1 868 in stock.

Thanks

yurysvirida commented 4 years ago

it is possible to find the design files here. https://www.openhardware.io/view/102/Wall-Switch-Insertable-Node

But if you are planing to solder it yourself - it is a bit of challenge as there 0603 parts.

There is some drawback for wire antennas as the antenna orientation in a box or gang sometimes affects signal very much. it might became very weak.

Please take a look at this project https://www.crowdsupply.com/easysensors/easyswitchbox

We will have it for sale on tindie in later January. Price will be around USD 17 -18. maybe less. Did not get final bill. There is built in antenna.

Anyways, I will check monday if we have PCB's for the switch and how many switches we still have