Ats20 Firmware [verified] <Simple × MANUAL>

A new firmware feature for the ATS-20 (often powered by the Si4732/Si4735 chip and an Arduino Nano) must balance the chip's powerful DSP capabilities against the limited memory (32KB Flash) of the ATmega328P.

Below is a drafted feature proposal for a "Signal Quality Sniffer", designed to enhance the DXing (long-distance) experience without overextending system resources. 📡 Feature: Signal Quality Sniffer (SQS)

The SQS is a real-time diagnostic overlay that replaces the static RSSI bars with a high-fidelity "Signal-to-Noise & Multipath" profile to help users orient antennas and find the cleanest frequency. ✨ Key Functionalities

Dual-Metric Bar: Instead of just signal strength, the bar splits to show RSSI (Signal Strength) and SNR (Signal-to-Noise Ratio) simultaneously.

Audio Mute-on-Seek: Automatically mutes audio while fast-tuning to prevent "pop" noises, re-engaging only when a signal meets a user-defined SNR threshold.

Peak Hold: A "ghost" marker on the S-meter that stays at the highest signal level reached in the last 3 seconds, perfect for rotating telescopic or external antennas.

Multipath Indicator: (FM Only) A small "MP" icon that flashes if high multipath interference is detected, suggesting the user needs to reposition. 🛠️ Technical Implementation

DSP Registry Access: Pulls data from the Si473X registers for SNR and RSSI using the PU2CLR SI4735 Library.

Memory Optimization: To fit this in the ATmega328P, the feature uses a Low-Res Graphic Mode (drawn with simple line-bitmaps) to save flash space compared to high-res fonts.

Control Integration: Toggled via a Long Press on the STEP or BAND button to avoid adding new physical switches. 📝 Logic Draft (Pseudo-code)

void updateSQS() if (sqsModeEnabled) si4735.getCurrentAutomatedDigitalLevel(); int currentSNR = si4735.getCurrentSNR(); int currentRSSI = si4735.getCurrentRSSI(); // Draw logic for the OLED display.drawHorizontalBar(0, 54, currentRSSI, MAX_RSSI); display.drawGhostMarker(lastPeakRSSI); if (currentSNR < 5) display.printIcon(ICON_NOISY); Use code with caution. Copied to clipboard 🚀 How to Add This Feature

To implement a custom feature like this into your ATS-20, follow these steps:

Get the Source: Download the Goshante ATS_EX or PU2CLR source code from GitHub.

Edit in Arduino IDE: Open the .ino sketch. Use Arduino IDE 1.8 for best compatibility with older libraries.

Optimize Space: If the code is too large, comment out unused bands (like LW or specific SW segments) in the bandtable section.

Flash: Connect via USB (ensure the CH340 driver is installed) and select Arduino Nano (ATmega328P) as the board. How to Upgrade Firmware on the ATS-20+ Radio (Correct way)

The ATS20 firmware refers to the software that controls the operation of the ATS20, a type of device used in amateur radio and other applications. The firmware is responsible for managing the device's functions, including its communication protocols, signal processing, and user interface.

Here are some key aspects of the ATS20 firmware:

Some common topics related to the ATS20 firmware include:

If you're looking for more specific information about the ATS20 firmware, such as update instructions or changelogs, I recommend checking the manufacturer's website or online forums for amateur radio enthusiasts.

Introduction

The ATS20 is a popular device used for various applications, and its firmware plays a crucial role in its functionality. Firmware is the software that controls the device's hardware components and provides the necessary instructions for its operation. In this content, we will explore the ATS20 firmware, its features, and the process of updating or modifying it. ats20 firmware

What is ATS20 Firmware?

The ATS20 firmware is a type of software that is embedded in the device's microcontroller or processor. It is responsible for controlling the device's functions, such as data processing, communication protocols, and user interface interactions. The firmware acts as a bridge between the device's hardware and software components, enabling the device to perform its intended functions.

Key Features of ATS20 Firmware

The ATS20 firmware offers several key features that make it an essential component of the device. Some of these features include:

  1. Device Configuration: The firmware allows for configuration of the device's settings, such as baud rate, data format, and communication protocols.
  2. Data Processing: The firmware processes data received from sensors or other sources, performs calculations, and generates output signals.
  3. Communication Protocols: The firmware supports various communication protocols, such as UART, SPI, I2C, and USB, enabling the device to interact with other devices or systems.
  4. User Interface: The firmware provides a user interface that allows users to interact with the device, configure settings, and monitor its performance.

Types of ATS20 Firmware

There are several types of ATS20 firmware, including:

  1. Stock Firmware: The original firmware that comes pre-installed on the device.
  2. Custom Firmware: Modified firmware created by users or developers to add new features or enhance existing ones.
  3. Beta Firmware: Test firmware that is not yet stable and is used for debugging purposes.

Updating ATS20 Firmware

Updating the ATS20 firmware is a crucial process that ensures the device remains functional and secure. Here are the general steps involved in updating the firmware:

  1. Download the Firmware: Obtain the latest firmware version from the manufacturer's website or other reliable sources.
  2. Prepare the Device: Ensure the device is properly connected to a computer or other programming device.
  3. Use a Firmware Update Tool: Utilize a firmware update tool, such as a dedicated software or a command-line interface, to upload the new firmware to the device.
  4. Verify the Update: Confirm that the firmware update was successful and the device is functioning as expected.

Modifying ATS20 Firmware

Modifying the ATS20 firmware requires advanced technical skills and knowledge of programming languages, such as C or C++. Here are the general steps involved in modifying the firmware:

  1. Obtain the Firmware Source Code: Obtain the firmware source code from the manufacturer or other reliable sources.
  2. Choose a Programming Language: Select a suitable programming language and development environment.
  3. Make Changes to the Code: Modify the firmware code to add new features, fix bugs, or enhance existing functionality.
  4. Compile and Upload the Firmware: Compile the modified firmware and upload it to the device using a firmware update tool.

Conclusion

The ATS20 firmware plays a vital role in the device's operation, and understanding its features, types, and update process is essential for users and developers. By modifying or updating the firmware, users can enhance the device's functionality, fix bugs, and ensure it remains secure and efficient. However, modifying the firmware requires advanced technical skills and knowledge, and users should exercise caution when making changes to the firmware.

Go to product viewer dialog for this item. receiver, often based on the ATmega328P Go to product viewer dialog for this item.

(Arduino Nano or Uno boards), can be upgraded with community firmwares like PU2CLR or Goshante's ATS_EX to unlock SSB, expanded band coverage, and better UI. 🛠️ Common Firmware Options

PU2CLR SI4735: Highly stable, open-source library supporting multiple receiver variants.

Goshante ATS_EX: Offers a redesigned interface and better tuning, though memory limits may prevent new feature additions.

Stock V1.1.5: The factory default for many units; some users prefer to revert to this if community builds have bugs. 📥 Flashing Methods

Updating typically requires a straight-through USB data cable (not just a charging cable) and a PC with the correct CH340/CH341 drivers installed.

The ATS20 (often the ATS-20+ or Plus model) is a popular, budget-friendly "all-band" radio receiver based on the SI4732 chip and Arduino hardware. Firmware updates are a frequent topic for users looking to unlock features like SSB (Single Side Band) support, improved scanning, or custom band presets. Recommended Firmware Options

PU2CLR (Ricardo Caratti): Often considered the gold standard for stability. Version V1.1.5 is a common factory-loaded or stable baseline for many units.

Goshante (goshante/ats20_ats_ex): A popular alternative that expands the radio's capabilities. Version 1.18 is frequently cited, though some users find the installation more complex due to screen scaling or hardware compatibility issues. A new firmware feature for the ATS-20 (often

Pro Tip: A "simplified" guide for the Goshante 1.18 update is available on the G4ZAL Blog. Critical Hardware Warnings

Updating the ATS20 is notoriously tricky due to manufacturing variations:

Bad USB Ports: Many ATS-20+ models shipped with Arduino Nano clones that have faulty USB ports or incompatible CH340 drivers. If your computer doesn't recognize the radio, you may need to replace the Nano or use an external programmer.

External Programmers: If the standard USB cable fails, users often resort to using a USBasp or a second Arduino Uno/Nano acting as an ISP programmer.

Battery Voltage Bug: Some firmware updates cause the radio to stop displaying battery voltage correctly. A common hardware fix involves a "solder blob" between specific pins (ADC1/ADC2) on the Nano board. How to Update Uno ISP programmer for ATS20 firmware update? - Facebook

To update the firmware on your ATS-20 (or ATS-20+) radio, you generally need to treat it as an Arduino Nano project. Because these radios use an Si4732/Si4735 chip controlled by an Arduino, you can flash them using the Arduino IDE or specialized tools like AVRDUDESS. 🛠️ Preparation & Prerequisites

Before starting, ensure you have the necessary hardware and drivers to avoid "bricking" the device or encountering connection errors.

USB Cable: Use a high-quality Mini-USB (for older models) or USB-C data cable. Avoid "charging-only" cables.

Drivers: Install the CH340/CH341 driver on your PC so it can recognize the radio's serial port. Software: Arduino IDE: Standard for most users.

AVRDUDESS: A GUI for AVRDUDE, often more reliable for direct .hex file flashing. 📥 Firmware Options

Choose a firmware version based on your needs. The ATS-20 typically comes with PU2CLR V1.1.5 pre-installed.

PU2CLR (Standard): The most stable and widely used codebase for Si473x radios.

Goshante (Advanced): Version v1.18 offers more features but is considered "advanced" and can be trickier to install.

Sources: You can often find the latest .ino or .hex files on GitHub or community groups like the ATS-20 Radio Community. ⚡ Step-by-Step Flashing Guide Method 1: Using Arduino IDE (Standard) Connect: Plug the radio into your PC and turn it on. Configure IDE: Go to Tools > Board and select Arduino Nano.

Go to Tools > Processor and select ATmega328P (Old Bootloader). Most ATS-20 clones use the old bootloader. Select the correct COM Port. Upload: Open the .ino sketch and click the Upload arrow. Method 2: Using Flash.bat (Binary Method)

If you downloaded a firmware zip containing a flash.bat file:

Extract: Put all files (esptool.exe, Flash.bat, and .ats files) in one folder. Run: Double-click flash.bat.

Input: Follow the command prompt instructions to enter your COM port number and start the update. ⚠️ Troubleshooting Common Issues

Here’s a short, interesting take on the ATS20 firmware — written in a style that’s part technical insight, part discovery log.

Why Does It Matter?

Because the ATS20 firmware sits at a rare intersection:
✅ Cheap ($30–40)
✅ Hackable (C/Arduino style code)
✅ Capable (Si4732 DSP is a beast when unleashed)

In many ways, the ATS20 is not a finished radio — it’s a platform. The community firmware turns it from a toy into a serious portable receiver, sometimes rivaling gear costing ten times more. Software updates : The ATS20 firmware can be

Step 3: Backup the Old Firmware (Optional but Smart)

Open command prompt and run:

avrdude -c usbasp -p m328p -U flash:r:backup.hex

Part 6: Troubleshooting Common Firmware Issues

Even with perfect steps, issues occur. Here is the fix matrix:

| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | Screen is white/blank | Wrong clock speed set (should be 8 MHz internal). | Recompile firmware for 8 MHz in Arduino IDE. | | Buttons do nothing | Pin mapping mismatch (ATS20 vs ATS20+). | Download the correct board variant file. | | SSB sounds like "Donald Duck" | BFO frequency is wrong. | Re-calibrate via hidden menu (PPM adjustment). | | Programmer fails (Error: 0x00) | No power to chip or wrong RESET timing. | Add a 10uF capacitor between RESET and GND on the programmer. | | Battery meter shows 0% | Voltage divider resistors differ on your PCB. | Edit the firmware’s BAT_READ pin value and recompile. |

Conclusion

The ATS-20 is a fascinating piece of hardware that punches above its weight class, largely thanks to the efforts of the open-source community. If you own an ATS-20X and feel limited by the factory settings, exploring community firmware is the best way to unlock the device's true potential—just be sure to check your hardware revision twice before hitting "Upload."

Disclaimer: Modifying firmware carries the risk of voiding warranties or damaging hardware. Always follow the specific instructions provided by the firmware developer.

Go to product viewer dialog for this item. ATS-20+ (Plus) Go to product viewer dialog for this item.

are popular SI4732-based all-band radio receivers known for their open-source versatility. Updating the firmware is a common way to unlock new features, improve screen layouts, and enhance overall performance. 1. Hardware Revisions

Before flashing, you must identify your specific board version, as it dictates the software settings you need:

Arduino Nano Version: Features a separate Arduino Nano board soldered onto the main PCB. Use "Arduino Nano (ATmega328P)" presets.

Arduino Uno Revision: All components, including the ATMega328P chip, are soldered directly to the main board. Use "Arduino Uno (ATmega328P)" presets.

Newer ATmega328PB Models: Some recent versions use the ATmega328PB chip and a CH340K USB chip, which may require specific drivers or hardware modifications to flash. 2. Firmware Options

PU2CLR (Standard): The widely accepted stable firmware, often found as version 1.1.5 or newer versions like 3.0.4.

Goshante (Advanced): A popular community firmware (e.g., v1.18 or v1.1.5-ex) that often provides a more polished interface and expanded features. 3. Flashing Procedure

The most common way to flash is via a Micro USB cable and a PC.

Drivers: You likely need the CH340 or CH341 USB-to-UART driver for your computer to recognize the device. Software Tools:

AVRDUDESS: A recommended GUI tool for Windows users to flash .hex files.

Arduino IDE: Useful if you want to compile the source code yourself from a GitHub repository.

Settings: Ensure the baud rate is set correctly, typically 115200, and select the appropriate COM port. 4. Troubleshooting Common Issues Uno ISP programmer for ATS20 firmware update? - Facebook

The story of the firmware is one of a community-driven transformation, where independent developers turned a simple "toy" radio into a versatile tool for amateur radio enthusiasts. The Evolution of the Firmware The Original (V1.1.5): Most ATS-20 units ship with stock firmware based on the PU2CLR Si4735 library

. While functional, it is often viewed as basic, providing standard broadcast AM/FM and shortwave reception. The Game Changer (Goshante/ATS_EX):

Developer Goshante released a "re-imagined" firmware that pushed the hardware to its absolute limits. This version introduced a completely reworked interface, replaced "ugly" stretched fonts with readable ones, and added advanced features like SSB (Single Side Band) and CW (Morse code) support with tuning steps as low as 10Hz. The Memory Wall:

The ATS-20's Arduino-based hardware has hit its physical flash memory limit. Because the Goshante firmware is so optimized and takes up nearly all available space, the developer has stated no new features can be added without removing existing ones. ATS20 SUPER FIRMWARE INSTALL,Goshante v1.18

Ats20 Firmware [verified] <Simple × MANUAL>