# RS232 IoT Expansion card - where can you get one? **URL:** \ **Category:** IoT Cards\ **Created:** [November 21, 2016, 11:11am UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294 "2016-11-21T11:11:43Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![happytuna](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/happytuna/32/102_2.png) [@happytuna](https://mangoh.discourse.group/u/happytuna)\ **Post date:** [November 21, 2016, 11:11am UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/1 "2016-11-21T11:11:43Z")
There don’t seem to be any vendors supplying them. Are they released yet or is there any plan to release them soon ? I mean production modules. If no production modules, how about schematics ? PS Renfell, who are linked to on the Sierra Wireless website, do advertise on but all attempts to contact them have failed, they don’t respond to emails and there is a problem with their web-query javascript. ---
**Author:** ![dfrey](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/dfrey/32/303_2.png) [@dfrey](https://mangoh.discourse.group/u/dfrey)\ **Post date:** [November 21, 2016, 3:35pm UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/2 "2016-11-21T15:35:53Z")
I have e-mailed Renfell with a link to this forum post. ---
**Author:** ![happytuna](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/happytuna/32/102_2.png) [@happytuna](https://mangoh.discourse.group/u/happytuna)\ **Post date:** [November 21, 2016, 3:51pm UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/3 "2016-11-21T15:51:04Z")
Thanks. If they’re going to be reading this, then the problem with their website javascript contact form is that it only accepts Australian telephone numbers… ---
**Author:** ![Kas.Lewis](https://avatars.discourse-cdn.com/v4/letter/k/e9a140/32.png) [@Kas.Lewis](https://mangoh.discourse.group/u/Kas.Lewis)\ **Post date:** [November 21, 2016, 9:36pm UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/4 "2016-11-21T21:36:51Z")
I can see that [Newark.com](http://Newark.com) or [Furnell.uk](http://Furnell.uk) (they are one and the same) have them avilable $7.74 [http://www.newark.com/embest/1401148/mangoh-platform-iot-breakout-board/dp/79Y9512](http://www.newark.com/embest/1401148/mangoh-platform-iot-breakout-board/dp/79Y9512) [http://www.newark.com/webapp/wcs/stores/servlet/Search?pageSize=25&st=mangoh&catalogId=15003&categoryId=800000004030&langId=-1&storeId=10194](http://www.newark.com/webapp/wcs/stores/servlet/Search?pageSize=25&st=mangoh&catalogId=15003&categoryId=800000004030&langId=-1&storeId=10194) I hope that helps Kas CAN [http://www.newark.com/sierra-wireless/canbus-iot-card/can-bus-iot-expansion-card/dp/94Y9718?MER=sy-me-pd-mi-acce](http://www.newark.com/sierra-wireless/canbus-iot-card/can-bus-iot-expansion-card/dp/94Y9718?MER=sy-me-pd-mi-acce) Ethernet [http://www.newark.com/sierra-wireless/enet-iot-card/ethernet-iot-expansion-card/dp/95Y0156?MER=sy-me-pd-mi-acce](http://www.newark.com/sierra-wireless/enet-iot-card/ethernet-iot-expansion-card/dp/95Y0156?MER=sy-me-pd-mi-acce) WiFi [http://www.newark.com/sierra-wireless/wifi-bt-iot-card/wifi-bluetooth-iot-expansioncard/dp/95Y0409?MER=sy-me-pd-mi-acce](http://www.newark.com/sierra-wireless/wifi-bt-iot-card/wifi-bluetooth-iot-expansioncard/dp/95Y0409?MER=sy-me-pd-mi-acce) ---
**Author:** ![happytuna](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/happytuna/32/102_2.png) [@happytuna](https://mangoh.discourse.group/u/happytuna)\ **Post date:** [November 22, 2016, 9:15am UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/5 "2016-11-22T09:15:34Z")
Kas, thanks for the suggestions. Those boards you linked to are breakout boards, not rs232. It’s not for a mangoh green which has rs232 on board. ---
**Author:** ![davidc](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@davidc](https://mangoh.discourse.group/u/davidc)\ **Post date:** [November 23, 2016, 10:31pm UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/6 "2016-11-23T22:31:43Z")
Hiya. Apologies for the delay in getting back everyone. And apologies for the bug on my contact form - I’ve just fixed the form to take overseas phone numbers. IoT cards are available now: RS232, RS485 & IoT Interface breakout. Only available direct from me at the moment. Either use the contact form ([http://www.renfell.com/contact](http://www.renfell.com/contact)) or PM me here on the forum and I’ll get back to you. ciao, Dave ---
**Author:** ![davidc](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@davidc](https://mangoh.discourse.group/u/davidc)\ **Post date:** [February 22, 2017, 12:52am UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/7 "2017-02-22T00:52:43Z")
Hiya, Expansion cards are now available form Linkwave Technologies in the UK: [http://linkwave.co.uk/accessories/expansion-cards](http://linkwave.co.uk/accessories/expansion-cards) ## ciao, Dave Tips, Tricks, Articles and Tutorials at [https://littlesliceofmangoh.com](https://littlesliceofmangoh.com) ---
**Author:** ![happytuna](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/happytuna/32/102_2.png) [@happytuna](https://mangoh.discourse.group/u/happytuna)\ **Post date:** [February 22, 2017, 9:53am UTC](https://mangoh.discourse.group/t/rs232-iot-expansion-card-where-can-you-get-one/294/8 "2017-02-22T09:53:19Z")
Hi Dave, Thanks for that. Littlesliceofmangoh is very good, btw.