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. Tim Albin - Wednesday, 16 January 2019 on blog post Building 100 Arduino Vacuum Pressure Gauges
    I am interested in either good information or one of these vacuum pressure sensors. Also do you have pressure sensors. Working on a project and need these or something like this.
  2. Rudi Schoors - Friday, 28 December 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Okay Al, great I found it.
    Update it every minute is okay I guess?

    Thx!
    Rudi.
  3. AL - Sunday, 23 December 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi Rude,
    Yes, you can use an external thermometer with my C library. In the library it is known as remote temperature.
    Cheers
    AL
    Swicago
  4. Rudi S - Friday, 21 December 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi guys,

    Greetings from Belgium.
    I have successfully managed to implement Al's solution on 1 of the 3 of my units (2 MSZ-SF's and 1 MSZ-FH) by just using an ESP-01 and a 3.3v-5v level shifter.
    It is also working nicely in Home Assistant too!

    I have one question at the moment, is it possible to use an external thermometer rather that the internal one?

    Thanks for the great work!!

    Cheers,
    Rudi.
  5. Hadley Rich - Sunday, 16 December 2018 on product SiliconDust HDHomeRun Connect Quatro
    Hey Dion, yes that's the correct model. Cheers.
  6. Dion - Sunday, 16 December 2018 on product SiliconDust HDHomeRun Connect Quatro
    Hi there,

    What's the model number of this? Is it the HDHR5-4DTAU?

    Cheers.
  7. Egis - Monday, 10 December 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi, seems Panasonic air-water heat pump has same connector, just different pin placment for rx tx and etc. I figured out all pins, tried to connect to my laptop ant monitor UART, but I doesnt get any data. Should I send some magic numbers to get communication working? Any hints how to figure out?
  8. Hadley Rich - Monday, 19 November 2018 on product SiliconDust HDHomeRun Connect
    Hi Aaron,

    Yes we will have stock of the new generation 5 version of the HDHomerun Connect Duo before christmas, probably in the next few weeks.

    In case you're wondering, there's no functional difference between the models so if you're wanting one then the generation 4 on this page is an excellent deal.

    Cheers,

    Hadley
  9. Aaron - Friday, 16 November 2018 on product SiliconDust HDHomeRun Connect
    Hi, do you have what seems to be the newer version of this, the Connect Duo?
    Cheers
    Aaron
  10. Hadley Rich - Wednesday, 24 October 2018 on product SiliconDust HDHomeRun Connect Quatro
    Hi Andrew,

    The HDHomeRun Connect Quatro is around 96mm square and 20mm thick. The antenna port does stick out of that 96mm a little.

    Cheers,

    Hadley
  11. Andrew - Wednesday, 24 October 2018 on product SiliconDust HDHomeRun Connect Quatro
    What are the dimensions of the HDHomeRun Quatro please?
  12. Islam Ahmed - Monday, 22 October 2018 on product RockBLOCK 9603 - Iridium SatComm Module
    Greetings,
    We are planning to add RockBLOCK 9603 - Iridium SatComm Module to one of our products. Currently we are still in the R&D stage and we need to purchase the module for testing.
    I was wondering if we need to prepare any licenses, certificates or forms before purchasing the module.
    I also would like to ask if there is any specific recommended external; SMA antenna to be used with the module?
    please advise
    looking forward to hearing from you soon

    best regards
  13. Vendel/ K2DSI - Friday, 19 October 2018 on blog post Using an I2C Real Time Clock (RTC) with a Raspberry Pi
    Oops, sorry about the double post, Vendel
  14. Vendel/ K2DSI - Friday, 19 October 2018 on blog post Using an I2C Real Time Clock (RTC) with a Raspberry Pi
    Hi, I'm running a Raspberry Pi 3b as a ham radio node/ repeater controller. It's running the Hamvoip Asterisk Arch Linux software. I'm trying to get my DS3231 RTC up and running with no success. I tried using the script from the following site...

    https://gist.github.com/grubernd/aed721614b36aaa31fd97ef5ab1ec6be

    when I run hwclock I get this...

    hwclock: Cannot access the Hardware Clock via any known method.
    hwclock: Use the --debug option to see the details of our search for an access method.

    The clock doesn't get detected. I tried your instructions. No luck. I can post the script and replies if that would help. I have two clocks and neither one works. Any help would be greatly appreciated. Thanks in advance, Vendel/ K2DSI.
  15. Vendel/ K2DSI - Friday, 19 October 2018 on blog post Using an I2C Real Time Clock (RTC) with a Raspberry Pi
    Hi, I'm running a Raspberry Pi 3b as a ham radio node/ repeater controller. It's running the Hamvoip Asterisk Arch Linux software. I'm trying to get my DS3231 RTC up and running with no success. I tried using the script from the following site...

    https://gist.github.com/grubernd/aed721614b36aaa31fd97ef5ab1ec6be

    when I run hwclock I get this...

    hwclock: Cannot access the Hardware Clock via any known method.
    hwclock: Use the --debug option to see the details of our search for an access method.

    The clock doesn't get detected. I tried your instructions. No luck. I can post the script and replies if that would help. I have two clocks and neither one works. Any help would be greatly appreciated. Thanks in advance, Vendel/ K2DSI.
  16. Hadley Rich - Monday, 15 October 2018 on product 12V Solenoid Valve - 3/4"
    Hi Travis,

    You could do that with an Arduino or similar, we're more set up with parts and things for people to build their own controllers and so don't have anything off the shelf that will do that unfortunately.

    Cheers,

    Hadley
  17. Travis Currie - Sunday, 14 October 2018 on product 12V Solenoid Valve - 3/4"
    Hey, I am looking to set up a misting system with this valve, and need a timer that will do seconds to go with it (about 15 seconds on-off, every 30 mins). What would you recommend?

    Cheers
    Travis
  18. Danny - Thursday, 11 October 2018 on blog post Get a real VoIP Conference Phone
    Polycom conference phones is one of the best phones
  19. Hadley Rich - Monday, 01 October 2018 on product SiliconDust TECH4-2DT
    Hi Dave,

    I'm not sure I follow what you're asking in relation to the HDHomerun tech?

    Cheers
  20. Hadley Rich - Monday, 01 October 2018 on product Adafruit PT100 RTD Temperature Sensor Amplifier - MAX31865
    Well, you didn't have to mount all the SMD components I assume. You forgot to quote the rest of the paragraph:

    "Each order comes with one assembled RTD amplifier breakout board. Also comes with two 2-pin terminal blocks (for connecting to the RTD sensor) and pin header (to plug into any breadboard or perfboard). A required PT100 RTD is not included! (But we stock them in the shop). Some soldering is required to solder the headers and terminal blocks to the breakout, but it's an easy task with soldering tools."
  21. Greg - Sunday, 30 September 2018 on product Adafruit PT100 RTD Temperature Sensor Amplifier - MAX31865
    "Each order comes with one assembled RTD amplifier breakout board"
    Absolute bollocks - comes in pieces - self-assembly required
  22. Dave - Saturday, 29 September 2018 on product SiliconDust TECH4-2DT
    Can you add an external IPTV channel via plex via ip address
  23. John M Clayton - Wednesday, 19 September 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    Hello Hadley. I have researched this further and it WILL work for a NPWT vacuum pump for treating wounds. My Orthopedic surgeon, and other Doctors go on "missions" regularly and would Love several of these made. I would be happy to do this for them. I was wondering if you could post a link to your Eagle PCB files and also a link to the Arduino code you used? That would be extremely helpful so I would not have to re-invent the wheel you've so wonderfully already designed. After I have the boards made and soldered up, I will send a link to a picture of them and a write-up of the project they were used for. Also, the vacuum version of the sensor is MPXV5050VC6T1 and is made by NXP USA for about $10 each. With 0 kPa vacuum on th port, the signal out to the Arduino would be about 4.96 VDC. At -50 kPa that signal is about 4.95 VDC, so, it would be 90 mV per kPa! That makes the math in the Arduino sketch so easy! And, it can be output and easily displayed on a small OLED display. Also, just doing math in the sketch, the kPa can be converted to in Hg; mm Hg, or even PSI! the user would turn a rotary encoder to select what units they want the reading in and then use an up and a down push button to set the desired setpoint of the vacuum they would like to maintain.

    I figure if I used new Atmel chips and program as you did with bootloader and code copied from one prototype, it would be very quick to mass produce and the cost would be, roughly about $30 per board. That is amazing. The Doctor said he can find donors to buy the parts. Thank you for designing such a wonderful board!

    Kind Regards,
    John
  24. John Clayton - Saturday, 15 September 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    I this is the vacuum version from DigiKey : https://www.digikey.com/product-detail/en/nxp-usa-inc/MPXV5050VC6T1/MPXV5050VC6T...
  25. John Clayton - Saturday, 15 September 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    Sorry for the duplicate posts. I did not know they had shown up on your blog.
  26. John Clayton - Saturday, 15 September 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    I am making a Negative Pressure Wound Therapy (NPWT) vacuum pump. This Freescale MPXV5050 and arduino seems PERFECT? Do you offer these boards for sale? Maybe just the PCB and a bill of materials. I can solder components myself. I can take the output of the pressure sensor to an Arduino Nano analog input and, in the code, provide an on-off output signal to turn a vacuum pump on and off at a specific vacuum level.

    Currently available NPWT pumps cost over $2,000!!! I had one rented from a medical supply house and an 18 inch long incision was healed completely in less than 4 weeks! I had a hip replacement. I would LOVE to make these for instances where war or other major catastrophes can help injured people heal faster.
    One question... if the Freescale MPXV5050 is a PRESSURE sensor, does it also register NEGATIVE pressure (vacuum)? Typically a NPWT pump is set to around -110 mmHg (or -.146 BAR or -2.127 PSI). Thanks for any help! email me if you post your answer here on your blog mankey1960@gmail.com
  27. John Clayton - Saturday, 15 September 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    I am making a Negative Pressure Wound Therapy (NPWT) vacuum pump. This Freescale MPXV5050 and arduino seems PERFECT? Do you offer these boards for sale? Maybe just the PCB and a bill of materials. I can solder components myself. I can take the output of the pressure sensor to an Arduino Nano analog input and, in the code, provide an on-off output signal to turn a vacuum pump on and off at a specific vacuum level.

    Currently available NPWT pumps cost over $2,000!!! I had one rented from a medical supply house and an 18 inch long incision was healed completely in less than 4 weeks! I had a hip replacement. I would LOVE to make these for instances where war or other major catastrophes can help injured people heal faster.
    One question... if the Freescale MPXV5050 is a PRESSURE sensor, does it also register NEGATIVE pressure (vacuum)? Typically a NPWT pump is set to around -110 mmHg (or -.146 BAR or -2.127 PSI). Thanks for any help! email me if you post your answer here on your blog mankey1960@gmail.com
  28. Hadley Rich - Thursday, 13 September 2018 on product Adafruit Ultimate GPS FeatherWing
    Hey Dean,

    No worries, looks like they should be here today or tomorrow.

    Cheers,

    Hadley :)
  29. Dean Ashby - Thursday, 13 September 2018 on product Adafruit Ultimate GPS FeatherWing
    Hi Hadley,

    Sorry, I'm being impatient, just curious how far away the Adafruit Ultimate GPS FeatherWings are? I've got a shopping basket full of goodies just waiting on this item to come back into stock.

    Cheers,

    Dean
  30. Lorenzo Decaria - Tuesday, 11 September 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hey, this is an awesome content! Where can I find a CN105 connector though?

    Thanks!
  31. Daniel - Thursday, 06 September 2018 on product LIDAR-Lite v3
    How well do these perform in a dusty environment?
  32. Hadley Rich - Thursday, 06 September 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi Jonathan,

    I don't unfortunately, they're used as some multi cell lipo balance charger cables which is probably the easiest place to get them.

    The prototype you can see has the cable coming from the JST cable which is everything, power and comms from the Mitsi.

    Cheers,

    Hadley
  33. Jonathan - Thursday, 06 September 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Do you still have some "JST PA series" connectors available?
    And what is the black connector on the prototyping board with the red, yellow, green, blue cables?
  34. Daniel - Wednesday, 05 September 2018 on product LIDAR-Lite v3
    How well do these perform in a dusty environment?
  35. SVZ Guy - Wednesday, 29 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    OK, I got it to work now.

    For anyone reading this who wants to make this work with a NodeMCU, you need a logic level shifter. A voltage regulator as seen in the schematics on the github site is not needed though. The NodeMCU has its own voltage regulator. I provide the 5V from the heatpump to the VIN on the NodeMCU and it is automatically stepped down to 3.3V for the serial input (RXD) and output (TXD). from there I run these to the 3.3V side of the logic level shifter. I bought one online that has 4 channels (using two of them). You need to provide 3.3V (from the NodeMCU), 5V (from the heatpump) and GRND. I still used the pullup resistor on the 5V side of it. Hope this helps.
  36. Hadley Rich - Monday, 27 August 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    Hi Yusuf,

    There are a few different models of the MPXV5050, some are designed for positive pressure, some for negative.

    Cheers,

    Hadley
  37. Hadley Rich - Monday, 27 August 2018 on product SiliconDust TECH4-2DT
    Hi William,

    Not yet unfortunately, I don't believe it's finished approvals for the area.

    Cheers,

    Hadley
  38. Yusuf - Monday, 27 August 2018 on blog post Building 100 Arduino Vacuum Pressure Gauges
    Hi Hadley,
    I was just going through the data sheet for the MPXV5050 and it shows it measures from 0-50kPa. Your write up shows the reverse, that is, -50kPa-0. How did you do it ?
  39. Hadley Rich - Sunday, 26 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    That could be an issue with some of them, I used a level converter in the original.
  40. SVZ Guy - Saturday, 25 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    also reported this as an issue, sorry for the x-post.

    In the schmeatics, I see a voltage regulator to step down the 5V from Mitsubishi heatpump C105 to the ESP8266. But I don't see any requirements that the logic on RXD and TXD must be shifted. When measuring I see 5V on RXD (from heatpump) and 3.3V on TXD (from my Nodemcu / ESP8266 chip).

    The result is that the heatpump understands my commands but the Nodemcu doesn't receive anything back, or at least nothing it can understand.

    So my understanding would be I should use a voltage shifter to step down the data I receive from the HP from 5V to 3.3V. And while I am at it, I should probably step up what I send to the heatpump from 3.3 to 5V.

    Does that make sense? I am surprised no one else reported this yet...
  41. William Gordon - Friday, 24 August 2018 on product SiliconDust TECH4-2DT
    Hey there - do you have pricing available for the TECH5-16DT at all?
  42. SVZ Guy - Saturday, 18 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Planning on connecting my SVZ unit with a NodeMCU + DHT22 temperature sensor so I can use the setRemoteTemperature. My understanding is that if this is set then it will SYNC every time. If I had querying the sensor and then updating the setRemoteTemperature in the loop followed by the SYNC, how often do I need to do this? As often as possible? Every 10 seconds? Every minute?
  43. Erik - Saturday, 18 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi Rob,

    Good job on the Mitsubishi Heavy Aircon."
    I'll give it a try in a couple of days.
  44. Hadley Rich - Thursday, 16 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi SVZ Guy,

    No idea sorry, I know nothing about those.

    NG Guy
  45. SVZ Guy - Thursday, 16 August 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi,

    I have an SVZ unit (Air handler in Attic) currently running on a MHK1 thermostat. Going to try this out with my unit.

    Once I disconnect my MHK1 will the settings still remain, e.g. static pressure, that the unit stops running once setpoint is satisfied, etc?
  46. Matt Anderson - Thursday, 26 July 2018 on product SiliconDust HDHomeRun Connect Quatro
    Awesome as device, set it up with ease.

    Makes Plex better, the official HdHomeRun app is also great though.

    It is good for me since my house only has one good Ariel port, now that I have a 4 channel tuner hooked up to it, every tv actually gets tv lol plus the DVR function is awesome!

    Definitely worth the $$$
  47. Hadley Rich - Thursday, 26 July 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hi MikE,

    No idea unfortunately.

    Cheers
  48. Hadley Rich - Thursday, 26 July 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Hey Ken

    I think we have the GE series here rather than GB but I've really got no idea about different models in different countrys sorry.

    Cheers,

    Hadley
  49. MikE - Thursday, 26 July 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Is there a way to bypass errors of indoor unit , using it only as a ceiling fan etc. ? old mini split Mitsubishi outdoor unit broke down and i wanted to recycle indoor units good fan in my garage to circulate air but its going on stopping in erros after few minutes of operation because there is not outdoor unit attached .

    Sincerely
    MikE
  50. MikE - Thursday, 26 July 2018 on blog post Hacking a Mitsubishi Heat Pump / Air Conditioner
    Is there a way to bypass errors of indoor unit , using it only as a ceiling fan etc. ? old mini split Mitsubishi outdoor unit broke down and i wanted to recycle indoor units good fan in my garage to circulate air but its going on stopping in erros after few minutes of operation because there is not outdoor unit attached .

    Sincerely
    MikE