I designed a controller for N-gauge model trains using a 3.5-inch LCD. It displays a speedometer, voltmeter, ammeter, and user memory. You can also select the meter shape, control notches, adjust acceleration/deceleration, set scale speed, and configure constant lighting. Settings are adjusted via the LCD touch panel. Notch control provides a slight vibration and clicking sound in the handle. An acrylic panel is attached. A detailed manual is also included. Features: * Selectable meter shapes: circle or bar graph * Selectable linear or notch control; notch control provides acceleration control like a real train, with adjustable acceleration/deceleration for each notch position * 100km/h scale speed setting and 0km/h constant lighting setting * Variable PWM frequency allows for a "Do-Re-Mi-Inverter" sound * 7 user memories to save settings for each train * Operate the LCD touch panel with the included touch pen * Master controller movement range is 120 degrees; notch control generates a slight vibration and clicking sound with a plunger * LCD display uses alphanumeric characters; detailed explanations in the manual * Compact design with acrylic panels attached to the top and bottom of the circuit board Condition: * Set includes: Completed circuit board, handle, AC adapter 12V1A, connection cables for KATO and TOMIX, manual * The circuit board has been tested and is working. Please attach the handle. * Manual: https://www.dropbox.com/scl/fi/xnlfox3fin5l0zce8csbw/GCPC2Manual.pdf?rlkey=fnqwsxcnxfi56suymx3qtmojn&dl=0 * Introduction video: https://www.dropbox.com/scl/fi/y3xgmrtyqs1uup0m9mli7/GCPC2movie.mp4?rlkey=amnln91oiuir4a3nxbfq5k1ko&dl=0 Other: * Since it uses PWM, it cannot be used with DCC, vehicles equipped with large-capacity capacitors, or overseas-made vehicles. * It does not mean that you can accelerate to the maximum speed displayed; the maximum speed depends on the vehicle's performance. * The speed may vary even with the same speed display if the motor load changes, such as on a gradient track. * The included AC adapter is sufficient for operating most vehicles, but if there is a current shortage, please prepare a 12V2A AC adapter (AD-D120P200, available from Akizuki Denshi Tsusho, etc.). * Please ask if you have any questions.