# \#mqtt **URL:** https://forum.snap.berkeley.edu/tag/mqtt/3.md [Latest](https://forum.snap.berkeley.edu/latest.md) · [Categories](https://forum.snap.berkeley.edu/categories.md) · [Tags](https://forum.snap.berkeley.edu/tags.md) --- ## [Mqtt "sanitise" block missing in palette](https://forum.snap.berkeley.edu/t/mqtt-sanitise-block-missing-in-palette/20446)
**Author:** [@specialred](https://forum.snap.berkeley.edu/u/specialred)\ **Replies:** 6\ **Last updated:** [October 27, 2025, 4:53pm UTC](https://forum.snap.berkeley.edu/t/mqtt-sanitise-block-missing-in-palette/20446 "2025-10-27T16:53:12Z")
i opened the block editor for an mqtt block and noticed, for the first time, a “sanitise” block in the definition that doesn’t appear in the block palette ▶ the specific block ▶ images is there a reason why this block doe… --- ## [I need help with an MQTT project](https://forum.snap.berkeley.edu/t/i-need-help-with-an-mqtt-project/18598)
**Author:** [@bluebaritone21](https://forum.snap.berkeley.edu/u/bluebaritone21)\ **Replies:** 9\ **Last updated:** [January 30, 2025, 9:58pm UTC](https://forum.snap.berkeley.edu/t/i-need-help-with-an-mqtt-project/18598 "2025-01-30T21:58:31Z")
I am trying to understand MQTT by making client and server programs. When I send a request from the client, the server gets it. However, for some reason, the client doesn't seem to get a response. I'm not sure why this h… --- ## [MQTT safe chat!](https://forum.snap.berkeley.edu/t/mqtt-safe-chat/16858)
**Author:** [@coder\_07](https://forum.snap.berkeley.edu/u/coder_07)\ **Replies:** 36\ **Last updated:** [May 27, 2024, 3:08pm UTC](https://forum.snap.berkeley.edu/t/mqtt-safe-chat/16858 "2024-05-27T15:08:38Z")
MQTT safe chat! \[removed by moderator\] --- ## [Event time! design a multiplayer with the mqtt blocks!](https://forum.snap.berkeley.edu/t/event-time-design-a-multiplayer-with-the-mqtt-blocks/16060)
**Author:** [@u39902fh](https://forum.snap.berkeley.edu/u/u39902fh)\ **Replies:** 37\ **Last updated:** [May 9, 2024, 4:22pm UTC](https://forum.snap.berkeley.edu/t/event-time-design-a-multiplayer-with-the-mqtt-blocks/16060 "2024-05-09T16:22:09Z")
within the next month i want you guys to create a game in snap! featuring the mqtt blocks. i found, with my chatsonic on my side, that mqtt can INDEED be added in multiplayer games! If you manafed to create a game before… --- ## [I can't connect to a local MQTT server](https://forum.snap.berkeley.edu/t/i-cant-connect-to-a-local-mqtt-server/14531)
**Author:** [@robotsitges](https://forum.snap.berkeley.edu/u/robotsitges)\ **Replies:** 3\ **Last updated:** [July 18, 2023, 8:10am UTC](https://forum.snap.berkeley.edu/t/i-cant-connect-to-a-local-mqtt-server/14531 "2023-07-18T08:10:04Z")
Hello, I'm doing tests with MQTT blocks. I have installed a local Mosquitto server on a Raspberry Pi, and I want to connect to the server from Snap!, but I can't. The local server does not have a username or password a… --- ## [Snap! Online Shooter](https://forum.snap.berkeley.edu/t/snap-online-shooter/14518)
**Author:** [@joecooldoo](https://forum.snap.berkeley.edu/u/joecooldoo)\ **Replies:** 13\ **Last updated:** [July 15, 2023, 7:28pm UTC](https://forum.snap.berkeley.edu/t/snap-online-shooter/14518 "2023-07-15T19:28:51Z")
I used the MQTT library to make a small online game. CONTROLS: Arrow keys or WASD to move the player. The green player is you. GOAL: Kill the other player. Just shoot the enemy (red square) enough times. MATCHMAKING… --- ## [If MQTT publish is put in a FOREVER loop, other MQTT blocks don't work](https://forum.snap.berkeley.edu/t/if-mqtt-publish-is-put-in-a-forever-loop-other-mqtt-blocks-dont-work/14085)
**Author:** [@starbox614](https://forum.snap.berkeley.edu/u/starbox614)\ **Replies:** 14\ **Last updated:** [April 12, 2023, 4:40pm UTC](https://forum.snap.berkeley.edu/t/if-mqtt-publish-is-put-in-a-forever-loop-other-mqtt-blocks-dont-work/14085 "2023-04-12T16:40:20Z")
when a MQTT publish block is put in a forever loop, other MQTT blocks stop working. project links: server, client to reproduce: open the server project, press the flag. now, in a separate window, (or a separate bro… --- ## [Multiplayer ball bouncing game](https://forum.snap.berkeley.edu/t/multiplayer-ball-bouncing-game/14041)
**Author:** [@starbox614](https://forum.snap.berkeley.edu/u/starbox614)\ **Replies:** 23\ **Last updated:** [April 9, 2023, 11:51pm UTC](https://forum.snap.berkeley.edu/t/multiplayer-ball-bouncing-game/14041 "2023-04-09T23:51:52Z")
after I saw this project by @calculator I decided to update one of my old projects with the MQTT library. here it is: multi-snap ball ▶ Guide --- ## [Snap! Server](https://forum.snap.berkeley.edu/t/snap-server/12895)
**Author:** [@scratchmodification](https://forum.snap.berkeley.edu/u/scratchmodification)\ **Replies:** 10\ **Last updated:** [December 22, 2022, 12:50am UTC](https://forum.snap.berkeley.edu/t/snap-server/12895 "2022-12-22T00:50:58Z")
Snap! Server Set communications between sessions easily Hi there! I was doing a lot of work and I’ve finally finished which I think is my biggest project ever! :tada: It is a library which lets you communicate with a s… --- ## [Pen Online](https://forum.snap.berkeley.edu/t/pen-online/11360)
**Author:** [@joecooldoo](https://forum.snap.berkeley.edu/u/joecooldoo)\ **Replies:** 57\ **Last updated:** [September 2, 2022, 4:39pm UTC](https://forum.snap.berkeley.edu/t/pen-online/11360 "2022-09-02T16:39:44Z")
Draw online with your friends! --- ## [Mqtt blocks](https://forum.snap.berkeley.edu/t/mqtt-blocks/202)
**Author:** [@mikep345678](https://forum.snap.berkeley.edu/u/mikep345678)\ **Replies:** 22\ **Last updated:** [July 31, 2021, 5:14pm UTC](https://forum.snap.berkeley.edu/t/mqtt-blocks/202 "2021-07-31T17:14:12Z")
Heya, all, I want to be able to use Snap! to send and receive mqtt messages. My specific desire is to build an interface in Snap so I can send control messages and receive sensor readings from esp8266-based iOT devices …