# Inquiry about EVKITSWF-20 CO2 sensor kit connector port **URL:** \ **Category:** Development Boards, Kits, Programmers\ **Tags:** gas-sensing-solutions-ltd, evaluation-boards, documentation\ **Created:** [January 3, 2025, 5:58am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640 "2025-01-03T05:58:37Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 3, 2025, 5:58am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/1 "2025-01-03T05:58:37Z")
Hello, I am looking for the CO2 sensor on your website and the **EVKITSWF-20 [EVKITSWF-20 Gas Sensing Solutions Ltd | Development Boards, Kits, Programmers | DigiKey](https://www.digikey.ca/en/products/detail/gas-sensing-solutions-ltd/EVKITSWF-20/9952886)** meet my requirements. However, I am wondering about the connector between the sensor with the computer. I can see the USB cable has one end connects to the computer, the other end connects to the sensor, but I cannot see the port is suitable with the sensor board. Can you explain for me that? Or maybe I get confusing because I am seeing not in the right angle? I attached the picture below for my question. I am looking forward for your reply. Thank you for helping me! Have a nice day! ![image EVIKITSWF-20 CO2 sensor kit_Digikey](https://global.discourse-cdn.com/digikey/original/3X/e/7/e7d716a7472bd837e118ce01180935b62088036e.jpeg) ---
**Author:** ![Karl\_1696](https://avatars.discourse-cdn.com/v4/letter/k/9de0a6/32.png) [@Karl\_1696](https://forum.digikey.com/u/Karl_1696)\ **Post date:** [January 3, 2025, 12:58pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/2 "2025-01-03T12:58:10Z")
Hello, From what I can see it does not have a right angle. Just straight. ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 5, 2025, 3:46am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/3 "2025-01-05T03:46:53Z")
Hi Karl, So can I have the confirmation that the provided cable fit the CO2 sensor board port? ---
**Author:** ![Matt\_Mielke](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/matt_mielke/32/71373_2.png) [@Matt\_Mielke](https://forum.digikey.com/u/Matt_Mielke)\ **Post date:** [January 6, 2025, 4:19pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/4 "2025-01-06T16:19:46Z")
Looks like the provided cable is a simple FTDI cable. It’s purpose is to interface with the UART pins and provide power/ground. The [SprintIR-W datasheet](https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6134/SprintIR%E2%80%90W_Rev4.2_Jun2020.pdf) (page 7) indicates these are pins 1, 3, 5, and 7 on the board’s connector. ![image](https://global.discourse-cdn.com/digikey/original/3X/c/6/c6bb8be565023d8bd92ae24b17e9f0bd3eec6bdd.png) After connecting the cable to the sensor board, the result should look similar to the following (taken from the [evaluation kit user guide](https://www.gassensing.co.uk/wp-content/uploads/2023/05/CO2-Sensor-Evaluation-Kit-User-Guide-21-July-2022-Rev-1.5.pdf)): ![image](https://global.discourse-cdn.com/digikey/original/3X/2/a/2a8bede0b1f11615881eb4ebbde013d65fccdb2a.jpeg) Notice that only a subset of the pins are being utilized. So to answer your question, yes, the provided cable will fit the board connector. ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 10, 2025, 3:19am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/5 "2025-01-10T03:19:22Z")
Hi Matt, My purpose purchasing the SprintIR-W sensor is to measure CO2 concentration. As you say, the cable just only connects with pins 1, 3, 5, 7. So can I still measure the CO2 concentration without connecting to the other pins, especially 8, 9, 10? ---
**Author:** ![Matt\_Mielke](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/matt_mielke/32/71373_2.png) [@Matt\_Mielke](https://forum.digikey.com/u/Matt_Mielke)\ **Post date:** [January 10, 2025, 2:34pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/6 "2025-01-10T14:34:44Z")
If I’m understanding the datasheet correctly: - A pulse on pin 8 (NITROGEN\_ZERO) is equivalent to issuing the U command over the UART interface - Pin 9 (ANALOGUE\_OUTPUT) is optional. CO2 levels can be read over the UART interface in different ways depending of the operating mode. - A pulse on pin 10 (FRESH\_AIR\_ZERO) is equivalent to issuing the G command over the UART interface So, yes. The full capabilities of the sensor should be available to you using only the UART pins. ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 11, 2025, 7:57am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/7 "2025-01-11T07:57:14Z")
Hi Matt, If I understand correctly, I can use the U command to zero nitrogen or G command to zero fresh air concentration. So does the software support this sensor board? I attach the image taken from the user guide for the evaluation kit. ![image](https://global.discourse-cdn.com/digikey/original/3X/2/e/2e048bdfee95c644c809d7cbfb7cf000b58fcc22.png) ---
**Author:** ![Matt\_Mielke](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/matt_mielke/32/71373_2.png) [@Matt\_Mielke](https://forum.digikey.com/u/Matt_Mielke)\ **Post date:** [January 11, 2025, 12:30pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/8 "2025-01-11T12:30:43Z")
> [@hg3nguye](#): > > So does the software support this sensor board? Yes. In fact, the USB stick that is included with the dev kit should include the software installation files. ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 31, 2025, 7:29am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/9 "2025-01-31T07:29:15Z")
Hi Matt, I am sorry for bothering you, I just want to confirm again before purchase. The **EVKITSWF-20 [EVKITSWF-20 Gas Sensing Solutions Ltd | Development Boards, Kits, Programmers | DigiKey](https://www.digikey.ca/en/products/detail/gas-sensing-solutions-ltd/EVKITSWF-20/9952886)** will include the SprintIR-W 20% CO2 sensor, the sensor board, the USB-A cable and the USB containing the software, right? ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [January 31, 2025, 9:28am UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/10 "2025-01-31T09:28:32Z")
Also, can I ask how to get the quotation of an item on DigiKey website, especially if I just purchase one? I click “Request the quote” but dont know how to do it further? ---
**Author:** ![Quinn\_2289](https://avatars.discourse-cdn.com/v4/letter/q/f4b2a3/32.png) [@Quinn\_2289](https://forum.digikey.com/u/Quinn_2289)\ **Post date:** [January 31, 2025, 1:25pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/11 "2025-01-31T13:25:30Z")
Send the part number and quantity requested to [quotes@digikey.com](mailto:quotes@digikey.com) ---
**Author:** ![Matt\_Mielke](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/matt_mielke/32/71373_2.png) [@Matt\_Mielke](https://forum.digikey.com/u/Matt_Mielke)\ **Post date:** [January 31, 2025, 2:49pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/12 "2025-01-31T14:49:39Z")
Everything you see in the picture should be included, yes. ---
**Author:** ![hg3nguye](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hg3nguye](https://forum.digikey.com/u/hg3nguye)\ **Post date:** [April 9, 2025, 5:29pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/13 "2025-04-09T17:29:55Z")
Hello Matt, I am sorry to bother you again. From what I see in the picture, the CO2 sensor incorporate with the flow adaptor already right? So it’s not a membrane version? ---
**Author:** ![Matt\_Mielke](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/matt_mielke/32/71373_2.png) [@Matt\_Mielke](https://forum.digikey.com/u/Matt_Mielke)\ **Post date:** [April 9, 2025, 5:59pm UTC](https://forum.digikey.com/t/inquiry-about-evkitswf-20-co2-sensor-kit-connector-port/47640/14 "2025-04-09T17:59:54Z")
Hi @hg3nguye, Yes, it should be fitted with the flow port adapter like it shows in the picture.