Differences

This shows you the differences between two versions of the page.

--- nyan:log [2024/03/05 18:18] – river
+++ nyan:log [2024/08/28 16:57] (current) – river
@@ Line 1: / Line 1: @@
 ====== Captain's Log ======
+===== Stardate 20240827 =====
+I didn't realise how long it was since I last wrote here. I've been busy working on this and other projects.
+This evening we tested a Nyan box on a boat in Granton harbour. :) Connected to the NMEA2000 bus, it picks up wind instruments, position, and other data, and sends it out over LoRa. We made contact with a meshtastic station over the water in Fife.
+===== Stardate 20240428 =====
+Since last update, I've mostly been working on:
+  * Starting to put together some devices: [[:construction|Electronics Construction / Hardware Notes]]
+  * Repairing and reverse engineering a commercial wind and weather sensor (WXT510), to use with Nyan. (TODO: write up). Seeing how to interface with it: maybe with SDI-12, but it can do some stuff over NMEA0183. Bodging around the corroded electronics. Fibreglassing the case and finding a mounting pole.
+  * Testing a 5V power supply (buck converter) to run Nyan and a pi of 12V nom.
+  * Examined an [[:ngt-1|Actisense NGT-1]]
+  * Testing an [[:as3935|AS3935 Lightning Detector Chip]], with a view to including it on a Nyan board design
+  * Made a webpage at [[https://personal.cis.strath.ac.uk/river.macleod]], for some academic linkjuice?
+  * Talking to people about future marine / environment related research on boats, and how to organise this
+  * Went to see some boats to measure up / see how to fit some nyan devices.
+  * Testing INA3221 current sensors ([[:current_measurement|Current Measurement]])
+  * Build / test a Raspberry Pi Pico W version of nyan prototype. It works, but having trouble with meshtastic python cli.
+  * Tested devboard antennas, and another one I bought, on the LiteVNA. Some are useless, some okish. [[:lora-antennas|LoRa Antennas]]
+  * Tested supplied uFL -> SMA pigtails. They are ok.
+  * Antenna design.
+  * Made a JTAG adapter for debugging the various ESP32 / pi pico boards I am working with.
+  * Admin: repaired lab lighting, and my laptop.
+  * Component shopping.
+  * Receiving, testing, rejecting, and reordering some components.
+  * Learning how to use, and testing, a LiteVNA.
+  * Testing NMEA2000 parts and terminators. The ones I got are not just 120 ohm resistors.
+===== Stardate 20240312 =====
+I am having trouble with WiFi and web interface on two ESP32 devices. The Heltec Wireless stick is not connecting at all, and the Heltec V3 is not accepting a change of SSID, and says it can't see the access point (same error reported by the wireless stick).
+Positive: I have got NMEA2000 / CAN working! A RPi Pico device is receiving and decoding PGNs sent by SignalK.
+===== Stardate 20240309 =====
+Today I have been mostly working on SignalK and NMEA2000. Trying SignalK security tokens (not tested yet because the WiFi on the dev board broke). Testing ([[:can_interfaces|USB CAN adapter]], got [[:signalk|SignalK]] to output data on it, viewed in Wireshark. Also code for handling multiple GNSS sources ([[:gnss|Position Accuracy Assessment]]).
+I have setup a remote dev environment using a single board computer with an ESP32 LoRa dev board connected by USB, and reset pin on a GPIO. Accessed over wireguard, this makes a very convenient way to work without having to move around a bunch of hardware and reconfigure networking when I want to work somewhere else.
+I tried setting up a WiFi AP on the remote machine, but the dev board was not connecting to that either.
+I also setup VNC. Until now I always used X forwarding, but it was super slow. I had assumed that something which knew the protocol and wasn't just shovelling bitmaps would be faster, but apparently not.
 ===== Stardate 20240305 =====