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Servotester_Deluxe (with improved software)

The original autor is "Der RC Modellbauer": https://www.youtube.com/@DerRCModellbauer

forked from his GitHub: https://github.com/Ziege-One/Servotester_Deluxe

PCB, schematic and more details: https://www.pcbway.com/project/shareproject/Servotester_Deluxe_62a3f47c.html

Support thread (in German and English): https://www.rc-modellbau-portal.de/index.php?threads/servotester-deluxe-von-der-rc-modellbauer-mit-meiner-erweiterten-software.17383/

How to program it

  • With Arduino IDE
  • With Visual Studio Code (recommended)
  • With ESPHome-Flasher (for pre compiled .bin files, depending on your display)

Schematic

Menu

Oscilloscope 0 - 3.3V

Calculator

Features

  • 5 channel PWM Signal generator for the following modes: STD, NOR, SHR, SSR, SUR, SXR
  • manual or automatic movement modes
  • PWM read function with pulsewidth and frequency display
  • PPM, SBUS and IBUS read function
  • Oscilloscope for 3.3V RC signals, PWM and PPM signals can be visualized well
  • Signal generator on GPIO 26
  • Calculator
  • P O N G game
  • Flappy Birds game
  • Settings menu, parameters are stored in EEPROM
  • Operation via rotary encoder with push button
  • Supply via USB (for small servos) or XT-60 plug
  • 0.96 or 1.3 Inch OLED display
  • Some functions can be controlled via the built in website

TODO Software ****************************************

  • remove PPM menu delay
  • Menu: Add beep on / off
  • Add servo output in signal read mode (decoder)
  • Improve Signal generator

TODO Hardware ****************************************

  • Capacitor for 5V rail
  • Capacitor for smooth upload
  • Anti backfeed diode
  • Room for buzzer
  • I2C Connector for gyro sensor
  • Reset button

******************************************************

Changelog

New in v0.16-beta.2:

  • No very long beep during WiFi enable / disable anymore
  • WiFi symbol shown, if enabled

New in v0.16-beta.1:

  • Wifi can be enabled and disabled without reboot
  • Oscilloscope crashing, if WiFi off: no fix so far, leave WiFi enabled...
  • Temporary fix: #define FAST_ADC in 0_general settings.h (only use it, if WiFi is always on)
  • Web interface enhanced

New in v0.16-beta.0:

  • Signal generator added on GPIO 26 (frequency setting still buggy, triangle not working)
  • Oscilloscope potentially crashing on some devices: bugfix attempt

New in v0.15.0:

  • Much nicer sine curves on the oscilloscope thanks to the new ADC_LINEARITY_COMPENSATION option in "0_generalSettings.h"
  • Oscilloscope sampling delay up to 300 µs
  • Oscilloscope is about 8 times faster now. Allows to analyze 1600 Hz SXR siganls way better
  • Frequency and duty cycle averaging in oscilloscope
  • Encoder acceleration enlarged
  • Battery voltage not actualized during power scale adjustment: bug fixed
  • EEPROM factory reset option in settings menu
  • Servo endpoints and centerpoint are adjustable in 2 groups: STD, NOR, SHR and SSR, SUR, SXR and saved in EEPROM
  • Software version is displayed earlier (after logo)

New in v0.14.0:

  • Oscilloscope added
  • BUS & oscilloscope input is on CH 5 now
  • Precise frequency counter in PWM impulse read mode added
  • fixed PWM impulse read bargraph issues
  • SSL servo mode removed, because it was useless
  • SSR, SUR and SXR frequencies changed, now working with Sanwa PGS-CL II servo
  • Added support for active 3V buzzer on GPIO 4
  • Calculator: added power of
  • ESP32Servo library removed, repaced with native MCPWM ESP32 functionality. Allows way faster servo timings
  • A lot of new servo modes added, names are displayed on screen

New in v0.13.0:

  • Servo Hz setting effective on all servo channels and in automatic mode
  • Bug fixed: Automatic mode not working in 560 Hz mode
  • Bug fixed: Servo angle wrong in 560 Hz mode
  • Bug fixed: progress bar out of range in impulse read mode
  • Cleaned up frequency selection code
  • Microseconds servo range is now displayed in the servo frequency settings menu
  • A little calculator was added

New in v0.12.0:

  • Added a Flappy Birds Game
  • Alternative logo optimized

New in v0.11.0:

  • Added a Pong game ;-)
  • Ball speed is adjustable in settings

New in v0.10.0:

  • Added encoder acceleration in servo tester mode. Makes the operation very handy. If you want to make bigger servo movements, just rotate the encoder faster!
  • Unstable Multiswitch issues because of incompatible espressif 32 board solved, see comments in src.ino

New in v0.9.0:

  • Servo is able to oscillate way faster in automatic mode, speed adjustability improved
  • Made sure, there is no language string array pointer overflow, if EEPROM was deleted before
  • There are still issues with unstable Multiswitch readings. Solution for now: use the pre compiled bin files or use Arduino IDE 2.0.3 with espressif 32 board 2.0.5 (which is unfortunately incompatible with VS Code)

New in v0.8.0:

  • Support for calibrated analogRead, using the ESP32AnalogRead library is improving battery monitoring
  • Number of LiPo battery cells is displayed
  • Message, if no valid battery is detected
  • Support for French language added

New in v0.7.1:

  • ESPHome-Flasher discovered a serious EEMPOM bug, because flash is erased before upload. It should now be fixed.

New in v0.7.0:

  • It is now compatible with VS Code / Platformio. This makes board and library version management way easier, because all is defined in platformio.ini and downloaded automatically. Of course it is still compatible with Arduino IDE
  • No external SBUS library required anymore
  • Adjustable WiFi power
  • Support for alternative logo
  • New menu options: -- Encoder direction inversed or not -- SBUS inversed or not -- Language English or German (others could easily be added) -- Help text is displayed during start