I pulled mine apart to try to see if there was a label that would provide a clue about which version to write it it - there isn't. A tip: you can just undo the top screws front and back to get the lid off. Watch the speaker connected by short wires
On power on, it displayed V1.1.5 of the library by PU2CLR. After upgrade it now shows 3.04.
I followed the instructions on swling.com but used Arduino 1.8.13 on macOS just fine.
Basically the steps are:
- Select Arduino Nano
- Select ATMega 328P (Old boot loader)
- Install libraries:
- SI4735
- Tiny4kOLED
- TinyOLED-Fonts (it's a dependent)
The source code is available here. For my hardware, I found the version titled "SI473X_ALL_IN_ONE_OLED_RDS_CHINESE_V3" was the one that matched the buttons on my front panel.
In the source code of the sketch there are some settings to adjust if you like such as default volume.
Before upgrade here's the splash screen:
It's quite a sensitive receiver and sideband works pretty well. Here's an example.
5 comments:
It's interesting how the received audio drops when you increment the VFO. Any ideas why this might be happening?
Question: Is there a short description of what the display is showing?
Example: Last or bottom line of the display shows:
BW:4KHz. 45. S:3 100%
Understand the BW, & 45. What does the S:3 mean? What does the 100% mean?
Thanks in Advance,
Tom
tom@tomgoss.us & ddd8130dr@gmail.com
Hi Tom,
I think the firmware is based on this repository: https://github.com/pu2clr/SI4735/tree/master/examples/SI47XX_03_OLED_I2C
BW is bandwidth.
S:3 is signal strength in a logarithmic scale.
Not sure about 100%, I'll have a play and get back to you.
73
Peter
Peter, when I try to verify/compile project I get an error with patch_ssb_compressed.
Arduino:1.8.19 (Windows 10), Tarjeta:"Arduino Nano, ATmega328P (Old Bootloader)"
SI473X_ALL_IN_ONE_OLED_RDS_CHINESE_V8:87:10: fatal error: patch_ssb_compressed.h: No such file or directory
#include // Compressed SSB patch version (saving almost 1KB)
^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1
patch_ssb_compressed.h: No such file or directory
My receiver is an ATS20 PLUS.
Can you help me please?
Thank´s in advance.
I had this same problem, for myself I found two different solutions fairly useful....in the SI4735-master folder are the patch files...
1-you can cut and paste into the folder containing the arduino example file you want to run
2-you can open the files from arduino using library examples, in other words in arduino IDE go to file->examples->PU2CLR SI4735 -> choose an example, these examples in the actual library already have the approrpiate patch added.
hopefully that helps.
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