coap Archives - The Golioth Developer Blog https://blog.golioth.io/tag/coap/ Golioth, Zephyr, and IoT Development News and How Tos Mon, 28 Apr 2025 20:31:50 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://blog.golioth.io/wp-content/uploads/2023/09/cropped-Golioth_Symbol_Coral_RGB-1-32x32.png coap Archives - The Golioth Developer Blog https://blog.golioth.io/tag/coap/ 32 32 How to Sniff Cellular Packets with a Nordic nRF91 https://blog.golioth.io/how-to-sniff-cellular-packets-with-a-nordic-nrf91/ Tue, 29 Apr 2025 14:01:10 +0000 https://blog.golioth.io/?p=9448 Sniffing network packets from a cellular modem is actually pretty easy. It only seems daunting because at first glance you're left wondering how to acquire the packets. Nordic's nRF91 modems have a trace capability that can be used to pipe packets from the device into Wireshark over a USB connection. Here's how to use it.

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]]> How to Debug a Network Error in Zephyr https://blog.golioth.io/how-to-debug-a-network-error-in-zephyr/ Tue, 21 May 2024 14:43:54 +0000 https://goliothblogdev.wpenginepowered.com/?p=7153 Zephyr has built-in debugging for many of its supported boards. Here's a real-world example of utilizing the these tools to track down and fix a networking error with CoAP.

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]]> Why Golioth Uses CoAP https://blog.golioth.io/why-golioth-uses-coap/ https://blog.golioth.io/why-golioth-uses-coap/#comments Thu, 11 May 2023 15:03:09 +0000 https://goliothblogdev.wpenginepowered.com/?p=4467 Golioth uses CoAP because we care about performance. This article explains the basics of CoAP and some of our decisions to use the protocol.

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]]> https://blog.golioth.io/why-golioth-uses-coap/feed/ 3 How to Manually Connect to Golioth with the ESP-IDF https://blog.golioth.io/how-to-manually-connect-to-golioth-with-the-esp-idf/ Thu, 21 Apr 2022 14:47:57 +0000 https://blog.golioth.network/?p=1815 Golioth communicates with IoT devices using the CoAP protocol. While our official SDK is built on Zephyr, any platform with CoAP and pre-shared key authentication can be used on the Golioth platform. Here's how to set up the ESP-IDF to work with Golioth.

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