{"id":127445,"date":"2023-10-06T08:47:00","date_gmt":"2023-10-06T03:17:00","guid":{"rendered":"https:\/\/www.electronicsforu.com\/?p=127445"},"modified":"2024-09-04T16:57:25","modified_gmt":"2024-09-04T11:27:25","slug":"diy-stereo-fm-radio","status":"publish","type":"post","link":"https:\/\/www.electronicsforu.com\/electronics-projects\/diy-stereo-fm-radio","title":{"rendered":"Remote Controlled Stereo FM Radio With RDS Using ESP-01"},"content":{"rendered":"
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\"efy<\/figure><\/div>\n\n\n

In this article, we will explore a straightforward method to create an IR remote-controlled FM radio with RDS<\/strong> (radio data system) using the ESP-01 module. We will utilise the Arduino IDE for software development and implementation.<\/p>\n\n\n\n

Previously we designed the simple stereo Fm receiver circuit<\/a> and FM Receiver Circuit<\/a>.<\/p>\n\n\n\n

This time, our primary goal is to design an affordable, compact, lightweight, and portable battery-operated Remote Controlled Stereo FM Radio with RDS message display<\/strong>, complete with IR remote control for user-friendly operation.<\/p>\n\n\n\n

Note:<\/strong> We attached the demo video of this Stereo FM Radio project at the end of the article.<\/p>\n\n\n\n

While there are several Arduino-based FM radios utilising modules like TEA5767, RDA5807M, and Si4703, they often come with drawbacks such as bulkiness, high power consumption, and excessive cost. <\/p>\n\n\n\n

For instance, implementing an FM radio with an Arduino Uno requires a significant amount of power and is not cost-effective. Even the Arduino Nano, though smaller, is relatively expensive and requires a larger number of pins for soldering.<\/p>\n\n\n\n

To tackle these limitations, we have chosen the ESP-01 module<\/strong>, which boasts four I\/O pins, making it an ideal candidate for our radio. The ESP-01 is easy to program and assemble, requiring minimal expertise. <\/p>\n\n\n\n

Unlike microcontroller-based designs, which demand additional components and pricey programmers, the ESP-01\u2019s programming can be accomplished using an inexpensive USB-to-TTL converter. <\/p>\n\n\n\n

Furthermore, there are numerous well-established Arduino libraries available for FM radio, IR remote control, and LCD\/OLED displays, making software development a breeze.<\/p>\n\n\n\n

For I2C communication with the FM radio module, we need two I\/O pins. For IR remote control we need one I\/O pin. With just three I\/O pins we can implement an FM radio with IR remote control along with RDS display using a I2C display (LCD or OLED).<\/p>\n\n\n\n

Banking on these advantages, we can quickly develop and integrate an FM radio with shortest development time using ESP-01. Fig. 1 shows the author\u2019s prototype of Remote Controlled Stereo FM Radio with RDS using ESP-01.<\/p>\n\n\n

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Fig. 1: Remote Controlled Stereo FM Radio<\/figcaption><\/figure><\/div>\n\n\n

To get started, let us look at the components required to build remote-controlled stereo FM radio-<\/p>\n\n\n\n

Table 1: Bill of Materials<\/strong><\/td><\/tr>
S.No.<\/strong><\/td>Description<\/strong><\/td>Reference<\/strong><\/td>Quantity<\/strong><\/td><\/tr>
1<\/td>220\u00b5F\/16V electrolytic capacitor<\/td>C7, C8, C9<\/td>3<\/td><\/tr>
2<\/td>470\u00b5F\/16V electrolytic capacitor<\/td>C6, C10<\/td>2<\/td><\/tr>
3<\/td>100nF capacitor<\/td>C1, C2, C4<\/td>3<\/td><\/tr>
4<\/td>22nF capacitor<\/td>C3<\/td>1<\/td><\/tr>
5<\/td>LD1117V33 (TO-220) or AMS1117-3.3 (SOT-223) 3.3 volts fixed voltage regulator<\/td>IC1<\/td>1<\/td><\/tr>
6<\/td>ESP-01 or ESP-01S<\/td>U1<\/td>1<\/td><\/tr>
7<\/td>RDA5807M FM stereo module RRD-102 V2<\/td>U2<\/td>1<\/td><\/tr>
8<\/td>4 pin 2.54mm header<\/td>LCD\/OLED<\/td>1<\/td><\/tr>
9<\/td>3.5mm stereo audio connector<\/td>X2<\/td>1<\/td><\/tr>
10<\/td>3.7V\/500mAh lithium-ion battery<\/td><\/td>1<\/td><\/tr>
11<\/td>TP4056 charger board<\/td>X1<\/td>1<\/td><\/tr>
12<\/td>Micro USB cable<\/td><\/td>1<\/td><\/tr>
13<\/td>Earphone or headphone, 32 ohms<\/td><\/td>1<\/td><\/tr>
14<\/td>SWG#22 wire 75cm length for antenna<\/td><\/td>1<\/td><\/tr>
15<\/td>23mm 128×32 OLED display SSD1306<\/td><\/td>1<\/td><\/tr>
16<\/td>38kHz IR 3.3V remote receiver and IR remote transmitter<\/td>U3<\/td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Remote Controlled Stereo FM Radio – Circuit<\/h2>\n\n\n\n

The circuit diagram for the remote-controlled stereo FM radio with RDS using the ESP-01 is depicted in Fig. 2. <\/p>\n\n\n\n

It comprises the 3.3V voltage regulator LD117AV33 (IC1), ESP-01 (U1), RDA5807M FM stereo module RRD-102 V2 (U2), 38kHz IR remote receiver 3.3V module (U3), 23mm (0.91-inch) 128×32 OLED display SSD1306, 32-ohm earphones or headphones, and a few other components.<\/p>\n\n\n\n

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