Intro I want to share what I found out regarding monitoring Huawei SUN2000 inverter using a Modbus/TCP method during my half-year journey with this inverter. Let’s start with some basics first:The inverter has internal WiFi access point built-in on its mother board. The main purpose …
Read MoreHow to do a firmware upgrade using FusionSolar
FusionSolar is a Huawei platform for monitoring solar inverters, but it also have a interface for firmware upgrade.Note: This is probably only possible if you have the installer account. This post describes how I did a firmware upgrade in the USB dongle of the SUN2000 …
Read MoreHow to connect to SUN2000 from DD-WRT
Intro The Huawei SUN2000 inverter has a build-in/internal WiFi interface (SSID beggining with SUN2000-<serialnumber>) which is exposing a Modbus TCP port (502). Using this connection you can obtain inverter data in the realtime and eg. collect it for your own purposes. Huawei Smart Dongle-WLAN-FE is …
Read MoreHuawei SUN2000 monitoring
If you want a simple and reliable solution for monitoring SUN2000 inverter and only collecting parameters to InfluxDB database I’ve added a support for this inverter in my hard. The daemon is written in Rust and doesn’t need any special python/perl dependencies to work. The …
Read MoreMy Skymax inverter died…
The story begins… The day after April Fools’ Day 2020 was not a funny day for me 🙁That day my sleep was interrupted by a constant beep from the garage several minutes after 5 in the morning. I woke up from bed and go through …
Read MoreChieftec HPC-360-302 DF repair
During revive the retro computer I discovered a problem with a Chieftec power supply: After powering it up it is emitting high frequency noise, mainboard is not starting after pushing the power button. I connected the multimeter and measured the STB (standby) line (violet color …
Read MoreJLCPCB and my new 1-wire bus master project
Hello,As you’ve probably seen (if you read my blog), my previous bus master was ugly, small and uncomfortable to use.It was the high time to make something new… 🙂 Connecting 1-wire buses should be as easy as connecting a LAN cable to the switch. As …
Read MoreUsing Rigol DS1074Z oscilloscope under Linux and PulseView
Hi,I recently bought a new Rigol DS1074Z which is a great oscilloscope for hobbyist. The feature to price factor was really great and it also has a quite nice reviews, so I decided to give it a try 🙂 Quick hardware overview It is a …
Read Morebinding/unbinding usb drivers a.k.a. who stole my hidraw1 device file
Hi! Recently I was playing with using my HID device differently then usual: I used the libusb library. Instead opening a raw file /dev/hidraw1, I used libusb_open_device_with_vid_pid(). Everything was working properly, then it was a time to go back using the hidraw file… but wait: …
Read MoreRaspberry Pi’s serial console
Hi! As I sometimes have odd behavior with my Raspberry Pi (the USB/LAN is stopping working, while the whole raspberry does still work), I had to find out the method to debug this specific problem. Connecting HDMI display and a keyboard in place where I …
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