Customer Comments

Here's the latest comments from our customers, if you've got comments that you think would be useful for others to read, you can also make a comment on the individual product or blog page.

  1. Hadley Rich - Friday, 10 July 2020 on product Adafruit Trinket M0
    Hi, Should be here in around 10 days
  2. Jim - Friday, 10 July 2020 on product Adafruit Trinket M0
    Hi, Any idea when your stock of Adafruit Trinket M0 will arrive ? Many thanks.
  3. Jim - Friday, 10 July 2020 on product Adafruit Trinket M0
    Hi, Any idea when your stock of Adafruit Trinket M0 will arrive ? Many thanks.
  4. Josh Lobel - Sunday, 21 June 2020 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Thanks to everyone, and especially Hadley for all of this work.

    I have pursued the Raspberry pi approach, and have most things working. I can use mitsi.py to change settings on my MSZ-FH12NA. I was initially confused by the TX and RX connection - not realizing that I had to connect TX on mitsubishi to RX on pi.

    However, I'm not sure what to do with the mqmitsi MQTT file. I have downloaded mosquitto, and can read publish and subscribe messages, but they don't seem to write/read from the serial port. If I issue a pub command like

    mosquitto_pub -h localhost -t "heatpump/command/state" -m '{"power":"ON", "temp": 15, "mode": "COOL"}'

    it doesn't change the heat pump.

    Do I need to do something like :
    python mqmitsi &
    to run it in the background (i've tried that), or do I need to add it to the mosquito broker in some way?

    Thanks for any advice. I have not installed home assistant yet. I'm using Pi Zero W to control the heatpumps and they don't suggest installing home assistant on the pi 0.
  5. katerina - Thursday, 18 June 2020 on product SiliconDust HDHomeRun Connect Quatro
    Dear,

    My name is Katerina and i am contact you from Matrix Smart Home.
    i need the product you have Silicondust HDHR5-4DT(EU) HDHomeRun CONNECT QUATRO

    Please contact me in kathry12@hotmail.com.

    Thank you
  6. Hadley Rich - Monday, 08 June 2020 on product 12V Solenoid Valve - 3/4"
    Most likely yes
  7. Paul Ayres - Monday, 08 June 2020 on product 12V Solenoid Valve - 3/4"
    Do you think I could use this for switching low pressure air (~4 bar / 50 psi)?
  8. Hadley Rich - Monday, 08 June 2020 on product 12V Solenoid Valve - 3/4"
    Unfortunately not, just this one.
  9. MikeH - Saturday, 06 June 2020 on product 12V Solenoid Valve - 3/4"
    hi do you have the AQT 15 SL solenoid available
  10. MikeH - Saturday, 06 June 2020 on product 12V Solenoid Valve - 3/4"
    hi do you have the AQT 15 SL solenoid available
  11. Hadley Rich - Tuesday, 26 May 2020 on product JST SH Jumper 4 Wire Assembly - 8"
    It's not. Unfortunately we don't have that specific connector currently.
  12. David - Tuesday, 26 May 2020 on product JST SH Jumper 4 Wire Assembly - 8"
    Is this the connector to use for the Mitsubishi heat pump project ?
  13. Anthony - Wednesday, 29 April 2020 on product Stepper Motor - 125 oz.in (200 steps/rev)
    hi i am after 4 of theses any idea when you will have more? thanks
  14. JMan7777 - Monday, 20 April 2020 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    If someone is interested to control his/her Mitsubishi air conditioners via Samsung SmartThings feel free to check my project:

    https://github.com/JMan7777/Mitsubishi-Aircon-SmartThings

    It uses an ESP32 connected via the CN105 port and the SmartThings Classic app.

    Cheers.
  15. katheryn - Tuesday, 14 April 2020 on product Big Dome Push Button - Red
    can this button be plugged in as opposed to battery operated ?
  16. katheryn - Tuesday, 14 April 2020 on product Big Dome Push Button - Red
    can this button be plugged in as opposed to battery operated ?
  17. Great Job - Friday, 03 April 2020 on blog post Milking Cows with Arduino - Part 3
    That's sounds like a great system. Is there any chance that you post your Software for the Arduino? Is it possible to buy it somewhere? We are a small milking farm. The milkling company offered us 78'000 to replace the milking system controllers. That's more money that we will do in a full year work.
    My email address is:
    job-scout@mastercool.ch

    Thanks!
  18. Great Job - Friday, 03 April 2020 on blog post Milking Cows with Arduino - Part 3
    That's sounds like a great system. Is there any chance that you post your Software for the Arduino? Is it possible to buy it somewhere? We are a small milking farm. The milkling company offered us 78'000 to replace the milking system controllers. That's more money that we will do in a full year work.
    My email address is:
    job-scout@mastercool.ch

    Thanks!
  19. Jamie - Monday, 30 March 2020 on product Vacuum Pump - 12V
    Hi team, is it possible to connect the positive pressure output of this pump to basically use it as a small compressor? Cheers,
  20. Andrew Boyd - Sunday, 29 March 2020 on product Linksys SPA2102
    hi

    Are these able to be reset?

    it seems to have lost its ability to get online :(

    thanks

    cheers
  21. Luka Cosic - Thursday, 06 February 2020 on product Solid State Relay (SSR)
    Wouldn't recommend these, I bought 4 and 3 of them started leaking voltage through on the load side, my lightbulbs would flicker when the relay control was disconnected and work correctly when powered on.
  22. Luka Cosic - Thursday, 06 February 2020 on product Solid State Relay (SSR)
    Wouldn't recommend these, I bought 4 and 3 of them started leaking voltage through on the load side, my lightbulbs would flicker when the relay control was disconnected and work correctly when powered on.
  23. Luka Cosic - Thursday, 06 February 2020 on product Solid State Relay (SSR)
    Wouldn't recommend these, I bought 4 and 3 of them started leaking voltage through on the load side, my lightbulbs would flicker when the relay control was disconnected and work correctly when powered on.
  24. Werner van der Merwe - Sunday, 22 December 2019 on product Water Flow Sensor - 1"
    The link to the wiki doco has changed - please refer to http://wiki.seeedstudio.com/G1_Water_Flow_Sensor/
  25. Zorro - Monday, 09 December 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi,

    Can somebody to clarify pinout of CNS connector for MHI?
    According to project of Rob Dekker https://github.com/rjdekker/MHI2MQTT:
    Pin 1 (left) = 12V, pin 2 = SPI clock, pin 3 = SPI MOSI, pin 4 = SPI MISO, pin 5 (right) = GND.
    But when I looked at some recent project (which based on Rob's one) https://github.com/absalom-muc/MHI-AC-Ctrl/blob/master/Hardware.md
    pinout is different:
    Pin 1 (left) = 12V, pin 2 = SPI MISO, pin 3 = SPI clock, pin 4 = SPI MOSI, pin 5 (right) = GND.
    Personally I have SRK25ZJ-S, a board a little bit different, but it also has CNS connector. So, before try to build WIFI MQTT bridge with ESP8266 I would like to clarify pinout for AC connector.

    Thanks in advice!
  26. Neil Allison - Sunday, 08 December 2019 on product Pololu USB AVR Programmer v2.1
    I'm very pleased with this programmer which has saved my bacon after my AVRISP MkII became intermittent and unreliable.
  27. Hadley Rich - Wednesday, 04 December 2019 on product Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain
    Hard to say, it depends on the building and surroundings etc.
  28. Al Grant - Tuesday, 03 December 2019 on product Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain
    Hello,

    How good is this antenna indoors?

    Thanks

    Al
  29. Gary - Wednesday, 27 November 2019 on product SiliconDust HDHomeRun Connect Duo
    Black Friday specials on HDHomerun gear?
  30. Hadley Rich - Tuesday, 19 November 2019 on product Big Dome Push Button - Red
    Hi,

    No these aren't waterproof.

    Cheers
  31. Hello, are this waterproof ? - Thursday, 14 November 2019 on product Big Dome Push Button - Red
    Volcantrust@gmail.com
  32. David Sainty - Monday, 11 November 2019 on product Portable Laptop Battery - Voltaic V88
    Can you do this with the Fuse 10W? I.e. the current Fuse 10W combination.
  33. Just wondering... - Friday, 01 November 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi! Nice hack! I have messed about with the MSZ-FD25VA with a remote marked as KM09D and one thing in the manual baffles me:

    "After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit.The indoor unit only accept the signal from the remote controller that has been assigned to the indoor unit once they are set.The setting will be cancelled if the breaker is turned OFF, or the power supply is shut down.Please conduct the above setting once again after the power has restored."

    Does this mean that there are some type of id sent on all KM09D remotes, or does this just mean different model of a remote? I haven't found out any indication in the IR-code. What else? Oh god... different timings on the hi and low states of the pulse!? I have a working control unit which just emulates the remote, but it seems that it sometimes doesn't work as intended...
  34. Ere - Thursday, 31 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    If anyone is trying to make setting remote temperature work and just getting roomTemperature reported as 10, you might want to check out https://github.com/SwiCago/HeatPump/pull/144. This change allows things to work with my European MSZ-FH35.
  35. David Sainty - Monday, 21 October 2019 on product Raspberry Pi 3 Model B+
    No Raspberry Pi 4 in stock yet?
  36. Michal - Sunday, 13 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @TimR Having the unit turn off was my initial plan. I was just a bit worried that there might be some additional wear and tear from doing that all day. Plus I believe there is a 3 minute delay between when the units turn on and the compressor can come on again?
  37. TimR - Sunday, 13 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @Michal Really if you're going to put an esp8266 in, you could just have the unit turn all the way off when the set point is reached and not bother with the resistors. Then if your remote goes down, the unit would fall-back and work with the internal sensor.
  38. TimR - Sunday, 13 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @Michal I doubt the compressor would run forever, but yes, the fan being off, if the internal thermostat needed to be used, it's function wouldn't be optimal. Depending on where it is situated, air would get to eventually but it might not work as well. These are things to consider. I think I will put the heating resistor back on. Like you said, the heating doesn't produce the humidity and it would be good to blow the heat away from the unit when the compressor is off. I might put a switch in-line with the resistor. Then I could turn the feature on and off easier. Looking at the diagram, your control board may not have the resistors. That might be a good thing. Your fan options may be controllable through software. But they may just be labeled something different. You could try Mitsubishi Customer Care. They have given out the jumper settings to other people (they had to be persistent). Good luck.
  39. Michal - Saturday, 12 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    I've been frantically searching for JRRE but it does not appear to exist on my unit.. At least not under that name.. Or not on that control board.
  40. Michal - Saturday, 12 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @TimR I guess what I'm asking is, if the external thermostat loses connectivity or the esp8266 module fails, will the compressor stay on forever?
  41. TimR - Saturday, 12 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @Michal Yes, I agree about the heating, but I removed both anyway. The fan being on is to get a reading via the thermostat inside of the heat pump itself. If a remote thermostat is used, then the reason for the fan blowing continuously is removed. However, I have no idea if damage can occur. Use at your own risk. It's just a fan setting, but I make no guarantee on it. It's a fix I saw on the Internet. Take it for what it's worth. I can only say I've done the mod on mine and it is working, but only you can decide if you want to do this modification. Every modification carries some risk. Your call. :)
  42. Michal - Friday, 11 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @TimR I don't think it would be worth touching JR01 as when heating is required humidity is not an issue (in my experience). However, what are the consequences of cutting JRRE? My understanding is that the reason the fan turn on is to get a reading of the temperature outside?

    Is it used for anything critical? ie can damage occur in some circumstance if the jumper is removed?
  43. Michal - Thursday, 10 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @TimR Thanks for that! Very useful info.
    Found a nice diagrams starting from page 36 at https://catalogo.lowcostclima.es/download/Manual%20técnico%20aire%20acondicionad...

    I have this AC unit: https://www.dropbox.com/s/tj7zavcm3zcqb49/ac.jpg
  44. TimR - Thursday, 10 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Here's a picture of my control board and the resistor jumper block for reference.

    https://i.postimg.cc/8P8whRQN/controlboard.png
    https://i.postimg.cc/wMDXWr8H/jumpers.png
  45. TimR - Thursday, 10 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @Michal Actually, I found a hardware fix if you prefer to go that way. The option to turn off the fan when the compressor shuts off in cooling mode is controlled by resistor JRRE. For heating, it is resistor JR01. Just remove the resistors and presto, it works. Stupid Mitsubishi decided not to let the customers have an easy way to set this option for ductless units, but I can confirm this work for my MSZ-GL24NA unit. Ymmv, but it may be an solution for your unit if you want to give it a shot. Keep in mind, this should really only be done if the internal thermostat isn't used, since the fan needs to circulate air up into the unit in that case. But if using a remote thermostat, there is no need for the blower to run non-stop.
  46. Michal - Thursday, 10 October 2019 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    @TimR Yes, this is the bane of my existence. I only just found this project (via all that it has spawned) and previous to that I had imagined just turning the unit off once the humidity started rising.

    I believe the problem is related to the AC being too powerful for the area it's cooling. There's an excellent forum discussion about why this happens that I found this years ago when trying to understand WHY the AC would make things better before making them MUCH worse. But as with many other such things I've lost it.

    My medium term goal will be to get this working and then see if I can somehow get it integrated into esphome.
  47. Kitty Fu - Tuesday, 08 October 2019 on product Pololu - TB67S249FTG Stepper Motor Driver Carrier
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    Mob: 86 139 6873 0044
    Tel: 86 577 5661 4299
    Email: Kitty.Fu@vip.163.com
  48. Hadley Rich - Tuesday, 01 October 2019 on product PC Engines miniPCI Express Radio
    Thanks Jason, fixed that up.
  49. Jason - Tuesday, 01 October 2019 on product PC Engines miniPCI Express Radio
    Is this product in the right category? This card is currently listed as 'Electronics Gear' but the other PC Engines wireless miniPCI Express card (https://nicegear.nz/product/compex-80211abgn-minipci-express-card) is under 'Wireless Equipment'. Seems like they should both be in the same category?
  50. Hadley Rich - Tuesday, 01 October 2019 on product TP-Link 8 Port Switch - SF1008P
    Thanks Jason! Fixed now, not sure how that happened.