DEVMO 2PCS Digital Particle Concentration Laser Sensor PMS5003 PM2.5 PM10+Cable for Arduino

Standard PMS particle sensor. Came well packed in bubble wrap and connector cables. Both units worked immediately out of the box. Decent enough price.

So unless you have converters from tiny pins to standard pin spacing, you will need to either cut the cable or try to find small wires to stuff into the cable and then convert to standard gauge for wiring to your device. A board that converts from the small pin spacing to standard spacing would be great to include. That aside, the unit works fairly well. As seems to be typical for DEVMO, there is no info included on the web page (some companies include data sheets on Amazon - a very handy feature). However, if you look up PMS5003, which is printed on the sticker (amongst other numbers) or look up PLANTOWER, you will find a fair bit of info out there. I just used a PLANTOWER data sheet and some Arduino test code I found online and all went well. One quirky thing to note (and this is another reason to include a converter board) is that while the sensor needs 5V power, the Tx and Rx use 3.3V levels, so you should be using a level shifter if interfacing with 5V level devices such as an arduino. It works just going direct, but may burn out the transceiver in the sensor after a while. I just tested it with some smoke from incense - that worked to drive the levels pretty high. Given that I am using test code, I can't say whether the readings are accurate or not, but they seemed somewhat plausible and if the readings were off it could be the code since I haven't really dug into it yet. So, if they provided a converter board that would be great, I really think that is needed here, hence the 4 star rating instead of 5. Aside from that it works well.

Works okay! The kit comes with 2 sensors and a cable. I don't have a header connector for this so i broke it out into pins to connect to the breadboard. I see that other vendors include a breakout kit for this function to keep the cable intact and that would have been a nice addon. For testing i used an ESP32 in the Arduino IDE with Adafruit's PM25 AQI sensor library. The sensor works off serial and it's a bit confusing finding the pinout on the cable. You will likely want to look for some documentation online for the module it's fairly common but can help figure it out. While i appreciated some of the details on the product page good documentation is always a plus and i wish there was something provided to facilitate. in any case the modules appear to work are sufficient for my usage case and i hope to build a little environmental sensor for my indoor or outdoor use. With increasing smokey days here it's good to have some reliable localized data to know when it's not so safe to be outside.

While this comes with a cable (thank you) it does not come with a header board for the cable to plug into. Compare this to the same product over at Adafruit where it does come with a header board. My inelegant solution to this (given the very small connector) was to cut the cable in half and then crimp male breadboard connectors on. It is now connected to an ESP32 board running ESPHome and reporting data for the house. So -1 star for the lack of header board. Given how long it took me to crimp those male connectors together, I'd be happy to pay a bit more for the board.