Electronics/JS/Mizefamily.net

2/15 no matter which lead same resistance light reduces used 10K bridge circ built BB and 021525_PhotoTransTest 2/28 Tested PTs use 500k instead of 100k improve sensitivity Now need drill holes

2/27 020925_tones_copy The frequency of PWM tones generated by an Arduino depends on several factors, including the spacing Tested w/ Osc can see freq notes Another approach 022725_TrueTones_copy_20250227100749 ou can generate tones by directly toggling a digital pin at the desired frequency

2/27 Single-Transistor Audio Amplifier https://www.youtube.com/watch?v=QGInwQa_XEM&t=196s&ab_channel=Henrik%27sHobbyElectronics @ 3:25min Finish breadboarding 2/27 Amp kinda worked w Player Need to test with tones tested w/ Tones - no signal - try another Amp Mioms 107 MOSFET Tried Mims107 Amp No signal... try another MOSFET circuit or more AMPS

2/11 got everything mounted Sketch written 021125_suntracker_copy_20250211151900 seems to be working except LRR reasd zero 2/12 added 10k resistors to each let Connect one leg of each LDR to the 5V pin on the Arduino. Connect the other leg of each LDR to an analog pin on the Arduino: Top-left LDR to A0 Top-right LDR to A1 Bottom-left LDR to A2 Bottom-right LDR to A3 Connect a 10kΩ resistor from each analog pin to the ground (GND) pin on the Ardui getting good readings from LDRs Need add battery for servos Added batt but readings erratic

2/3 Received SD cards - loaded Girls file - will add more Then test Ard player 2/4 used https://www.youtube.com/watch?v=mL0epDFNHqY&t=709s&ab_channel=RachelDeBarros https://racheldebarros.com/arduino-projects/trigger-sound-effects-with-arduino-pir-motion-sensor/ diff pin settingd - No Just a buzz on thew speakers Next try https://www.youtube.com/watch?v=PBdqgHj_AkU&t=11s&ab_channel=TheLastOutpostWorkshop 2/10 confirm file structure ok - ? 2/12 tried ck wiring - prob not probMP3 files good, speakers good, file dir or code prob 2/17 Built common emitter AMp Failed - no sound - on hold till I test an Amp w/ tones 2/25 Working but little sound - new player same as last one Need amp! Different hookup https://www.youtube.com/watch?v=P42ICrgAtS4&ab_channel=Indrek MOSFET AMP https://www.youtube.com/watch?v=ncu1Ep2Um2A&ab_channel=GreatScott%21 or N-channel MOSFET (e.g., IRF520 or IRL540) 100 μF electrolytic capacitor 1 kΩ resistor Speaker (8Ω or higher impeda...

https://keep.google.com/#NOTE/1dUv6LuozhWIjB66SL1GtLOrbnHdJFoS3m37Dkh2xY7bnIaUnRH9GW18gcLCwbcU 2/3 Found SD card reader DL girls file now need to play on Arduino 2/10 working sort of ..? can play explosion wav file song section? amp? wav? 020825_MP3 cant select

https://www.youtube.com/watch?v=JOVd3sKEFaI&ab_channel=CrazyCoupleDIY Tried this siple test - No Havent worked yet Hoped to work Wisker beam break