To support Julian's Postbag via Patreon: https://www.patreon.com/julian256
Check out Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor http://www.ebay.com/itm/-/311686357901?roken=cUgayN&soutkn=vCGsgX
Check out 2PCS New 9V Battery Holder Box Case Wire Plug 5.5*2.1mm for Arduino http://www.ebay.com/itm/-/401092884457?roken=cUgayN&soutkn=OLhpAS
Check out HTU21D Temperature & Humidity Sensor Breakout Board Module http://www.ebay.com/itm/-/400947178491?roken=cUgayN&soutkn=XmeNif
Check out SHT30 SHT30-D Temperature Humidity Sensor Breakout Weather For Arduino http://www.ebay.com/itm/-/201695165975?roken=cUgayN&soutkn=CvcJMZ
Check out Breakout Temperature Humidity Barometric Pressure BME280 Digital Sensor Module http://www.ebay.com/itm/-/401000227934?roken=cUgayN&soutkn=7JzmHB
Check out Christmas Trees LED DIY Kit Professional Red Green Flash LED Circuit http://www.ebay.com/itm/-/311475479268?roken=cUgayN&soutkn=HCPfiC
Check out 10PCS IIC I2C Level Conversion Module Sensor 5V-3V System For Arduino 5V to 3V http://www.ebay.com/itm/-/311576163493?roken=cUgayN&soutkn=xeDKTf
Check out 20PCS 2.54mm Pitch 1x4Pin Header Right Angle Female Single Row Socket Connector http://www.ebay.com/itm/-/311586790999?roken=cUgayN&soutkn=cp8H58
Check out 1Pc 12V Mini controller Dimmer connector for 3528 5050 RGB LED Strip 3 Keys http://www.ebay.com/itm/-/172256008077?roken=cUgayN&soutkn=h1PEK8
Check out LTC4359 15A Solar Charging Anti Reverse Irrigation Ideal Diode Module Controller #DIY http://www.ebay.com/itm/-/181907319494?roken=cUgayN&soutkn=vcgqWi
Check out 8A Solar Panel / Battery Charging Ideal Diode Anti Reverse Irrigation Module #DIY http://www.ebay.com/itm/-/201393971165?roken=cUgayN&soutkn=NIEGUL
Check out 15A Solar Panel / Battery Charging Ideal Diode Anti Reverse Irrigation Module #DIY http://www.ebay.com/itm/-/201393987921?roken=cUgayN&soutkn=5wEUkZ
Check out 10Pcs 5S1P Silicon Balance Charger Cable Wire JST XH Connector Male/Female Plug http://www.ebay.com/itm/-/331835205505?roken=cUgayN&soutkn=C5wdkB

By Julian

Youtuber, shed dweller, solar charge controller aficionado

13 thoughts on “Julian’s postbag: #76 – ideal humidity christmas”
  1. Avataaar/Circle Created with python_avatars Jeff Bluejets says:

    Did you ever do any project with the BMP280..??

  2. Avataaar/Circle Created with python_avatars Lizardo Foz says:

    My second Arduino project. Unfortunately the agony continues, though with
    some hard won insight. Trust no one, When you dht 11 is labeled one way
    on the front, flip it over and look at the traces. This only took a day.

    But now comes the display. Adafruit sketch for ic2 hello world says the address
    is 0, by default. Adafruit's own address list elsewhere gives it as 0x20-27 depending
    on jumpers shorted et al. Adafruit's ic2 scanner gives it as 0x38. None of these worked.
    Tried different Uno and the same nothing. Now waiting for additional displays.
    Knowing the score now I don't feel so irate, but the physical effects of repetitive stress
    damage are taking up time in between attempts. I guess this is what minge and munge
    mean Julian?

  3. Avataaar/Circle Created with python_avatars Gadgetboy says:

    You could always use some thick enameled wire and cross the wires over for vcc and ground.

  4. Avataaar/Circle Created with python_avatars Alan Warren says:

    Hi Julian, Is your PIC code for interfacing to the BME280 sensor available ?!

  5. Avataaar/Circle Created with python_avatars Anvilshock says:

    Where's our Christmas tree assembly stream??

  6. Avataaar/Circle Created with python_avatars KrX says:

    Hi Julian Ilett, i also bought a coule of those LED Mini controller Dimmer, from different sellers. But i got with all of them one problem. If i use them with 4m white LEDs after like 20/30 minutes they start blinking and when i power them off for some minutes they work again for 20/30 minutes. i get that problem also wth some RGB led controllers. could it be a problem with tempreture? but they arent really hot. do you have an idea?

  7. Avataaar/Circle Created with python_avatars CaroMan says:

    What exactly is the best use of he bought diodes?

  8. Avataaar/Circle Created with python_avatars Robert George says:

    +1 Vote for Christmas tree build with music, mince pies, eggnog, stories about Julian's favorite Christmas gifts from your childhood and puppets. Similar to your walkie talkie build.

  9. Avataaar/Circle Created with python_avatars Bradley Herbst says:

    Would you be able to do the display and temp sensor project with an esp8266 instead of the pro mini?

  10. Avataaar/Circle Created with python_avatars Theseus says:

    WHY I LOVE YOUR POSTBAGS SO MUCH???
    because i buy same stuff!! Electronics and shit..

  11. Avataaar/Circle Created with python_avatars Itnecap says:

    Hi Julian do you know the M590E module ?
    It's a 2$ GSM module I found on Ali

  12. Avataaar/Circle Created with python_avatars Logan says:

    The LED Christmas project is really cool and I would love to see a live build! Thanks so much Julian!

  13. Avataaar/Circle Created with python_avatars Nicholas Aarons says:

    Great Video Julian. Keep up the great work. Nick.

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