Electronics Created a High-Loudness ECM Microphone Amplifier that Operates on Phantom Power I made a microphone amplifier that can run on phantom power and can handle high volume.CircuitCircuit diagramThis is a m... 2021.05.22 Rose Electronics
Electronics Using PCF2129, a real-time clock IC, with ESP32 PCF2129Operates at 3.3VThe PCF2129 is a real-time clock IC that can run at 3.3V, and is connected to the microcontroller... 2021.05.15 Rose Electronics
Electronics Displaying a single digit number with the beautiful and transparent VFD display tube IV-27M This time I would like to control the IV-27M with ESP32 and display the numbers. Here is the previous experimental artic... 2021.05.12 Rose Electronics
Electronics VFD display tube IV-6 and MM5316N with clock source added to become a clock In this article, I would like to add a clock source to the previous circuit to make it a VFD clock.The previous article ... 2021.05.11 Rose Electronics
Electronics I made a ring oscillator using transistors I made a ring oscillator circuit with transistors, where the LEDs light up in sequence.Ring oscillatorIf you connect an ... 2021.05.11 Rose Electronics
Electronics Making a clock using VFD display tube IV-6 and MM5316N I'm going to make a watch out of an IV-6 that I bartered with a retro display tube enthusiast in Ukraine.Putting the VFD... 2021.05.04 Rose Electronics
Electronics Revenge of buck-boost DCDC converter circuit to operate ESP32 with two batteries In the previous circuit, when the ESP32 tried to connect to WiFi, the voltage dropped and the ESP32 rebooted. This time,... 2021.04.25 Rose Electronics
Electronics Make a circuit using CH340C for ESP32 writing (success). The circuit I made the other day could not recognize CH340K on my computer, so I used CH340C to make the circuit.Here is... 2021.04.18 Rose Electronics
Electronics Make a circuit using CH340K for ESP32 writing (failed). In order to write the ESP32 from the Arduino IDE, a USB serial conversion IC is required. This time I would like to make... 2021.04.17 Rose Electronics
Electronics Designed a power supply circuit to operate the ESP32 with two batteries (actually, I did not design it) I want an ESP32-DevKitC that runs on batteriesESP32-DevkitC is a board that allows you to use ESP32 easily. ESP32-Devkit... 2021.03.28 Rose Electronics
Electronics Until the K155ID1 is controlled by the ESP 32 and the 2 digit Nixie tube IN - 12B is dynamically lit. I have the substrate for the nixie tube and the K1551 ID 1 for the control IC, I want to control the nixie tube using ES... 2020.11.03 2021.03.17 Rose Electronics
Electronics The Nintendo Famicom has been remodeled into a clear video and a nice stereo output. The sharp video output and audio stereo function of the Nintendo Famicom Video Console, which we have been experimenting... 2020.11.03 2021.03.17 Rose ElectronicsFamicom
Electronics I make a UV-EPROM writer I want to make my own cassette for the Famicom, so I am making various preparations. Last time, I was experimenting with... 2020.11.03 2021.03.17 Rose Electronics
Electronics Circuit diagram of Nintendo Famicom cassette sucker kazzo clone 。Here is a schematic of a previously created kazzo clone. It is basically the same as kazzo_pcb_2 of kazzo0.1.3. The cha... 2020.11.03 2021.03.17 Rose ElectronicsInstruction Manual