Using an ESP32 we do a simple GET request to our bitcoin, lightning network LND full node
https://github.com/arcbtc/ESP32-LND-GET
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Here's a combined summary of the WCN episode "BTCIOT Tutorial - Connect an ESP32 to an LND bitcoin full node Part 1" (2019-06-06):
This tutorial series, split into three parts, guides viewers through connecting an ESP32 microcontroller to a Lightning Network Daemon (LND) full node using the Excellence Service Open Node. The goal is to enable projects to interact directly with a full node, beginning with a simple information retrieval request.
Main Topics:
- Setting up an ESP32 (NodeMCU and ESP32 boards) to connect to an LND full node.
- Configuring TLS certificates and macaroon authentication.
- Formatting certificates and creating configuration strings for the ESP32 library.
- Retrieving node information (public key, channel count) from the LND node.
- Bypassing browser security warnings related to self-signed certificates.
Key Quotes:
- "The goal is to port projects to communicate with a full node."
- "The importance of the certificate format for proper library recognition."
- (Implied) The presenter emphasizes the hands-on nature of the tutorial, involving copy-pasting and formatting adjustments.
People Mentioned:
- Presenter (unnamed)
- "77" (host of a node in Berlin)
Bitcoin Price:
The presenter demonstrates the entire process, from certificate export and formatting (using Raspberry Blitz for macaroon generation) to uploading code and displaying retrieved data. He also promotes his shop, jigawatt.co, for ESP32s and Bitcoin-related merchandise, and teases future "make-a-kits."