Hardware

Eval boards with the extended range module already installed are available now for $20: http://www.cypress.com/documentation/development-kitsboards/cyble-224110-eval-ez-ble-psoc-xtxr-evaluation-board

Hi. I have not so much experience with pir modules. I use an homemade pir, which works well :) and I am doing my own software for programmable features like nb of pulses for validating a trigger, blindtime etc..And it's a coincell board without any regulator, so.. But in your case, what I would do..(and it's easier with a scope !), is: LC filter, and you could add one capa before inductor too in some case, and maybe in this case, it's better to place the LC filter near the chip you want to clean (like radio or your pir module for instance). This is when you have enough room. But when you have not enough room, so it's easier to place the LC filter just after the booster, for all the board. use a good PSRR etc LDO for you PIR module. I think if you power directly the PIR module from the booster, without LDO that could be difficult..because of the mV PIR variation of analog part. Having a good ldo could help to smooth a bit too.. adding multiple, different small capa value near your pir module, for smoothing some frequencies...And you could add a 100u to absorb some voltage fluctuations too. So, you have to choose values for capa vs frequencies you want to filter. And another thing too, you need to choose the right inductor, they are not all equal..(datasheets curves and frequencies you want to filter ...) I hope this helps a bit :)

Or even this MOSFET and it would seem this is the datasheet after a quick google.

@Yveaux thats what I was thinking about. Thanks for confirming.

@Jasper-van-Winden well I was wrong. I had 13m CAT 5e cable laying around and just tested it with one DHT22 and it seems to be working: [image: qot0js.jpg] [image: 2nlwnqs.jpg] To consider: The Arduino Nano is powerd with a stable DC supply and it is only one DHT22, could be different outcome when you connect 5 of them all with long wires.

@korttoma I'll be adding BMP180 shortly as I need pressure and temperature to make a conversion.

I've found that adding this to setup() can cure flickering: //Increase Timer frequency to prevent flicker in Pins 5,6 PWM TCCR0A = _BV(COM0A1) | _BV(COM0B1) | _BV(WGM00);

yep, it's a long time Microchip wanted to acquire Atmel. few months ago,they won negociations. I like Microchip products, and this is a solid company (I started by learning microchip like lot of people!). They have started to release an MPLAB Xpress some times ago, which is a cloud based MPLAB, with community etc..I have not tried it, as I prefer my offline compilers but I hope their association with atmel will be promising in future for us..

I found out some part via google, but still some trouble. Maybe someone can help: I have the SDA and SCL connected to GPIO9 and GPIO10 of my nodeMCU (labeled SD2 and SD3). When uploading my normal ESP8266OTA sketch everything works fine and gateway is running. I added the Wire.begin(9,10) at the beginning of setup to set the pins used for I2C. void setup() { Wire.begin(9, 10); //sensor.begin(); ArduinoOTA.onStart([]() { Serial.println("ArduinoOTA start"); }); ArduinoOTA.onEnd([]() { Serial.println("\nArduinoOTA end"); }); ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) { Serial.printf("OTA Progress: %u%%\r", (progress / (total / 100))); }); ArduinoOTA.onError([](ota_error_t error) { Serial.printf("Error[%u]: ", error); if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed"); else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed"); else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed"); else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed"); else if (error == OTA_END_ERROR) Serial.println("End Failed"); }); ArduinoOTA.begin(); Serial.println("Ready"); Serial.print("IP address: "); Serial.println(WiFi.localIP()); // if (!bmp.begin()) // { // Serial.println("Could not find a valid BMP085 sensor, check wiring!"); // while (1) {} // } //metric = getConfig().isMetric; But as soon as I enable the sensor.begin() or bmp.begin() it's not working anymore. I get resets with the following message in serial monitor: ×Åü1¤ñþ0;255;3;0;9;Starting gateway (RNNGE-, 2.0.0-beta) 0;255;3;0;9;Radio init successful. scandone state: 0 -> 2 (b0) state: 2 -> 3 (0) state: 3 -> 5 (10) add 0 aid 5 cnt connected with WiFi, channel 1 ip:192.168.38.19,mask:255.255.255.0,gw:192.168.38.1 .IP: 192.168.38.19 Ready IP address: 192.168.38.19 ü!m!„þæÊõþ0;255;3;0;9;Starting gateway (RNNGE-, 2.0.0-beta) When using the BMP085test example sketch from the library I get ets Jan 8 2013,rst cause:4, boot mode:(3,7) wdt reset load 0x4010f000, len 1264, room 16 tail 0 chksum 0x0f csum 0x0f ~ld Does anyone knows if that is a problem of incompatible library or any other hint how to solve?

Well it looks like that doesn't help :( Btw I am using the "normal" cheap 5V ones from ebay but soldered the 3.3V directly to teh small "H" pad at the side (worked without problems from a good power source). Any other ideas guys?

I have only tried 12V on the raw pin once and that immediately fried the Arduino AND the 1m 60 RGB LED light strip I had connected to one of the io pins.

@hek said: If you have an Uno around your can use that for programming the ProMini. http://www.instructables.com/id/Arduino-Pro-Mini-Stand-Make-It-Reusable/ http://www.instructables.com/id/Uploading-sketch-to-Arduino-Pro-Mini-using-Arduino/ It's weekend and I finally have the time to give this another chance and guess what? It works! I manage to upload the sketch to my Pro Mini and successfully created my first ever MySensors sensor! Thank you so much for that!

Yep, absolute maximum is 15V. http://www.advanced-monolithic.com/pdf/ds1117.pdf

@NeverDie Thanks i'd took the 1 led off but have taken d13 and the regulator off now. Sitting at around 2.7v although as i'm more so testing i'm reporting the temp as often as every 5mins if it changes.

Hello Epierre, I'm working in a proyect and i'm using MQ131 sensor, but I have a problem with the Arduino Code. I've seen the page (https://github.com/empierre/arduino/blob/master/AirQuality-Multiple_Gas_Sensor1_4.ino) but I have a problem because my sensor readings are 0. if you would be so kind, could you send me only the code of sensor MQ131 ??. Thank you very much!!

@kenci Hi Kenci, yeah i'd been in contact with him through ebay as i purchased it from him but sadly he wasn't able to assist too much as he said he was a hardware rather than software guy. I figured it out in the end, wasn't rocket science and just took a little digging which i'm not adverse too but just couldn't see it at first.