This is a PCB for all beginners who want to quickly build the nodes described in the MySensors website! It can be used with regulated power or batteries and only have basic components. Its a PCB for all newbies that wants to do basic sensor/accuator nodes like myself out there... :)
This is the RFM69(HW/W) edition of EasyPCB! If you want the original EasyPCB with Nrf24l01+ transiever - go here.
So pretty much this PCB covers all the basic stuff documented in the MySensors website! This cuts my work with one node from a couple of hours (soldering wires) to 20min.
Only easy to solder components with good space in between. Only basic functions (Pro Mini 3,3v, Radio, Input for sensors and if battery powered booster and voltage divider) Some inputs for all the normal sensors used in the build section. 5x5 or 3x5 depending on function and dynamic in what power you use (Battery, 3.3v or >3.3v (requires voltage regulator). Note, this edition can only handle Pro Mini 3.3v and NOT 5v
Power consumption (without booster) in MySensors sleep() mode (Ver 2.2) was measured to 5,2uA which will last a node (depending on how often it transmits) a long time!
3x5cm (cut PCB)
Only the lower capacitor marked 0.1uF affects the RFM69 module! The capacitor marked 10uF only affects the input of the voltage regulator.
3x5cm (cut PCB)
[IMAGE COMING SOON]
3x5cm (cut PCB)
To be able to achieve this you need to reprogram the atmega bootloader and lower the BOD!
With REG closed you will feed everything (Arduino, Radio and Sensors) with whatever voltage the battery holds. You can´t use any sensors which require higher voltage than the current battery status (without DC/DC Step up booster). With this configuration you can use the internal VCC library to read battery status on VCC. Lowest working voltage (depending on added sensors) will probably be the RFM69w module which can handle down to 1.8v. Do not use any DC/DC step up booster or voltage regulator!
BAT: Short this if you are using batteries as power supply. It will activate booster circuit and power everything with a stable 3.3v. Make sure you have a corresponding DC/DC step up booster to match your batteries to 3.3v
REG: Use this if you are using 3.3v regulated DC.
RAW: This is a MysX feauture. This cuts onboard Vraw source if daughterboard provides Vraw. This is only used when EasyPCB is connected to a daugheterboard.
Rev 9 - RFM69 Edition
20/7-2017 This PCB is still under development and testings! Its far from finished and comfirmed working
Order 10pcs: Openhardware.io (Recommended!) and support me and MySensors! (It may say another rev. at the orderpage but this is not EasyPCB rev but the rev for manufacturer. I always update the gerber files for sale! Current = Rev 9)
Download from this page to get Eagles and Gerber files.
If you want a faster shipping time or less pieces you can I will soon be selling these from Ebay.
|1||Arduino Pro Mini||3.3v 8mhz||Only 3,3v!||https://www.mysensors.org/store/arduinos|
|1||DC/DC Step up booster||In: 0.8 – 3.0 Out:3.3v||Used if you power with batteries||https://www.mysensors.org/store/regulators|
|1||Voltage regulator||5v to 3.3v||If you input 5v. (You may change this, but it needs 3.3v out!||https://www.mysensors.org/store/regulators|
|1||RFM69 H or HW module||H or HW||The radio!||https://www.mysensors.org/store/radio|
|1||Antenna with SMA connector||Should match your freq on the radio||For the maker you can diy an antenna.||https://www.mysensors.org/store/radio|
|1||Capacitor throughhole||0.1uF||C1 – if you are using booster (optional, good with cheramic)||https://www.mysensors.org/store/components|
|1||Capacitor throughhole||10uF||C2 – if you are using voltage regulator||https://www.mysensors.org/store/components|
|1||Capacitor throughhole||0.1uF||C3 – if you are using voltage regulator||https://www.mysensors.org/store/components|
|1||Capacitor throughhole||10uF||C4 – If you are using voltage divider to measure battery level.||https://www.mysensors.org/store/components|
|1||Resistor throughole||10k - Optional||R1 – This is a pull-up resistor for D3||https://www.mysensors.org/store/components|
|1||Resistor throughole||470k – Optional||R2 – This is used for a voltage divider to measure bat. level||https://www.mysensors.org/store/components|
|1||Resistor throughole||1M – Optional||R3 – This is used for a voltage divider to measure bat. Level||https://www.mysensors.org/store/components|