# Looking for a ready to buy PCB for a Lora node with an ATtiny85 **URL:** \ **Category:** End Devices (Nodes)\ **Created:** [November 10, 2018, 3:27pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624 "2018-11-10T15:27:48Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 3:27pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/1 "2018-11-10T15:27:48Z")
Hello there, I am looking for a ready to order PCB for a Lora node based ont he ATtiny85 or similar. I am especially interested in ready to use code samples for this node. I am looking to make a few cheap and long lasting door sensors. Thanks a lot for your help! ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 4:08pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/2 "2018-11-10T16:08:53Z")
what lora(wan) module should that ATtiny connect ? remember the memory and I/O is very [limited](https://www.thethingsnetwork.org/forum/t/attiny85-rfm95-temperature-sensor/11211/6) with ’ long lasting’ do you mean the battery ? _\* as far as I know a working stack that fits is [never](https://www.thethingsnetwork.org/forum/t/running-lorawan-on-the-attiny/6004/13) released_ ---
**Author:** ![IoT\_Marco](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/iot_marco/32/45432_2.png) [@IoT\_Marco](https://www.thethingsnetwork.org/forum/u/IoT_Marco)\ **Post date:** [November 10, 2018, 6:53pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/3 "2018-11-10T18:53:33Z")
…_a Lora node based ont he ATtiny85 or similar_… Not the ATtiny85 but if the ATtiny84a is OK then take a look at [this](http://www.iot-lab.org/blog/101/), and combine it with [this](https://www.thethingsnetwork.org/forum/t/antenna-experiment-868mhz-j-pole/3620) and [this](https://www.thethingsnetwork.org/docs/applications/cayenne/) then you get something like this: ![ATtiny84-J-Pole](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/3/a/3ab79e5e116b7e4e5f484351806145adc5c3a51d.jpeg) and this 😉 ![ATtiny84Cayenne](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/7/c/7c201c443d29f8dd8d8ae2d70b81c22c3a4b54fc.png) ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 7:57pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/4 "2018-11-10T19:57:15Z")
Thanks a ton for your replies! Those look promising. What would be the default way to realize a Lora Node which runes on batteries and just sends a message when a door contact is closed? ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 8:11pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/5 "2018-11-10T20:11:54Z")
that depends on your programming/electronics experience. easiest way is to buy a factory node - [https://shop.factorylab.nl/product/fennec-door-count/](https://shop.factorylab.nl/product/fennec-door-count/) or read some LAB stories and edit/write new code for your use case - [https://www.thethingsnetwork.org/labs/stories/node](https://www.thethingsnetwork.org/labs/stories/node) ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 8:13pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/6 "2018-11-10T20:13:51Z")
Well I have no problem with programming, soldering, etc. I build my own node already with a Arduino Mini and the RFM95. Ideally I would be looking for a PCB now that also supports battery power. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 8:16pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/7 "2018-11-10T20:16:27Z")
So why don’t you use that one then… and use a magnetic contact as input ![magnetic%20ebay](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/0/7/071bbf31199f4d5da7e2b64b4604142a0ba0a0d1.jpeg) ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 8:17pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/8 "2018-11-10T20:17:19Z")
Yeah I want to do exactly that, but the Node I have now is hand soldered and takes a long time. Ideally I would like to use a ready made PCB design for that. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 8:18pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/9 "2018-11-10T20:18:02Z")
> [@Full Arduino Mini LoraWAN below 1uA Sleep Mode](https://www.thethingsnetwork.org/forum/t/full-arduino-mini-lorawan-below-1ua-sleep-mode/8059/50): > > @ursm Updated the [github](https://github.com/hallard/Pro-Mini-ICSP-FTDI) repo for the ICSP programmer with some pictures, but looks like this [image] In the meantime, I’ve just received V1.1 of MiniLora PCB, classic and groove, need some testing [image] ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 8:50pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/10 "2018-11-10T20:50:01Z")
Ok this looks very promising. The only downside is that the software stack he is using is still under NDA. Other than that I think this would be a nice PCB and if someone would provide a ready to run example for some sensor on this particular stack I could easly modify it for my use case. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 8:56pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/11 "2018-11-10T20:56:13Z")
> [@Algram](#): > > a ready to run example for **some** sensor I don’t follow. You need a door sensor… So basically on/off… with some intelligence I assume So that when someone don’t close the door the node won’t keeps sending the same ‘door’s open’ signal. 😉 His firmware is adapted for very low power use… you may use that for free, but not in a commercial application without contacting him… I don’t see a problem here ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 8:58pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/12 "2018-11-10T20:58:44Z")
It is more that I am unsure about the software stack I should be using. On GitHub they are writing that they use arduino-lmic. But this library has so many config options that I would basically need someone that sets “sane defaults that just work” for it. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 9:01pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/13 "2018-11-10T21:01:31Z")
yeah … you have to put some effort in your research… luckily there’s a lot to be found when using google / search here on the forum 😉 don’t expect a taylormade solution/tutorial presented especially for you … but we are here to help when possible. ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 9:02pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/14 "2018-11-10T21:02:53Z")
Well I was just wondering if someone had the same problem as I do and has just open sourced everything since that would be an ideal point of entry for me. PCB wise Charles has done that and I will probably order some of his pcbs. The next step would be to find a good entry point for the software side of things 🙂 ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 10, 2018, 9:04pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/15 "2018-11-10T21:04:07Z")
ok then… if you want to avoid using the LMIC stack you have to look at other options like nodes with RN2483/2903 chips that have buildin stacks. There are also PCB’s and complete nodes for sale (search **[Tindie](https://www.tindie.com/search/?q=lorawan+nodes)**) ---
**Author:** ![Algram](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/a/958977/32.png) [@Algram](https://www.thethingsnetwork.org/forum/u/Algram)\ **Post date:** [November 10, 2018, 9:05pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/16 "2018-11-10T21:05:46Z")
That would take the fun out of it 🙂 I think I will try and adapt the lmic stack then. Thanks for your help and time! ---
**Author:** ![jfmateos](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jfmateos/32/48419_2.png) [@jfmateos](https://www.thethingsnetwork.org/forum/u/jfmateos)\ **Post date:** [November 10, 2018, 10:39pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/17 "2018-11-10T22:39:45Z")
In spanish a open door node running on batteries > **[jfmateos/thethingnetwork\_madrid\_taller\_gateway\_nodo\_single\_channel](https://github.com/jfmateos/thethingnetwork_madrid_taller_gateway_nodo_single_channel/tree/master/Nodo/lora_mini_node_ttn_madrid_abp_puerta_abierta)** > > Contribute to jfmateos/thethingnetwork\_madrid\_taller\_gateway\_nodo\_single\_channel development by creating an account on GitHub. > **[jfmateos/thethingnetwork\_madrid\_taller\_gateway\_nodo\_single\_channel](https://github.com/jfmateos/thethingnetwork_madrid_taller_gateway_nodo_single_channel/tree/master/Presentacion)** > > Contribute to jfmateos/thethingnetwork\_madrid\_taller\_gateway\_nodo\_single\_channel development by creating an account on GitHub. ---
**Author:** ![Wijnand](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/wijnand/32/39170_2.png) [@Wijnand](https://www.thethingsnetwork.org/forum/u/Wijnand)\ **Post date:** [November 26, 2018, 5:01pm UTC](https://www.thethingsnetwork.org/forum/t/looking-for-a-ready-to-buy-pcb-for-a-lora-node-with-an-attiny85/19624/18 "2018-11-26T17:01:57Z")
See the power save solution on [https://pcbs.io/share/46aR0](https://pcbs.io/share/46aR0)