4/17/2024 0 Comments Digital mp3 player input 5.0vThis prototype board has the Arduino Nano module, MP3 player module, a 6 character dot matrix display modue, a battery backed RTC module (accurate version - DS3231 chip), two push buttons for input, and drives the NeoPixel LED strips (wires in upper left corner of photo). The DFPlayer just does NOT work with the Arduino (the cause remains to be discovered). There is most likely nothing wrong with your circuit. I have NOT determined why the DFPlayer design does NOT work, or what differences allow the MP3 player version to work. Note RED wires are +5V, ORN wires are +5V or +3.3V, BLK wires are GND. +5V is supplied to the breadboard, and depending on whether a red wire is inserted or a linear regulator is inserted, the proper voltage is presented to the Arduino. My breadboard accommodates either Arduino (Nano or Connect) by implementing a simple linear regulator. This was important to me because the newer RP2040 based Arduino runs at +3.3V and not +5.0V. The two MP3 player modules use different chips:īoth of these MP3 players are spec’ed to work using a +5V or a +3.3V power rail. I have also bought QTY=3 of a similar module that is marked “MP3-TF-16P”, of which ALL THREE of them work just fine. I’ve bought QTY=10 of the DFPlayers and tried four of them, of which NONE of them work at all. However, I have some interesting results that may help you. ![]() Dual USB port car charger Input: 12-24V DC Output: 5.0V DC 2.1. Optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells, or a single Li+ cell. They feature an extremely low 1.5A quiescent supply current to ensure the highest possible light-load efficiency. ![]() With your issue regarding the DFPlayer MP3 module, I too have been having NO LUCK getting it to play songs. Devices (iPad, Digital Cameras, Smart Phones, and Gaming Devices). The MAX1722/MAX1723/MAX1724 compact, high-efficiency, step-up DC-DC converters are available in tiny, 5-pin TSOT packages. The last thing to do is to connect a speaker to the DFPlayer. It allows to use a second serial port on other pins. In order not to block the native RX and TX pins of the Arduino (0 and 1), we use the software serial library. Digital Still Cameras PDAs and Palmtop Devices MP3 Players Features Input Overvoltage Protection Up to +28V Preset Overvoltage Protection Trip Level 6.38V (MAX4919B) 5.80V (MAX4920B) 4.65V (MAX4921B) Adapter/Car-Kit Auto-Selector Low-Current Undervoltage Lockout Mode Internal 1.8A (min) Battery Switchover FET Integrated. I’m an electrical engineer (40 yrs) and have been having some fun playing with the Arduino Nano, the Arduino RP2040 Connect, and the Alorium SNO Arduino Compatible FPGA based boards. The DFPlayer is first connected to 5V+ and GND, then its RX and TX pins are connected to the Arduino pins 10 and 11.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |