Electronics Using PCF2129, a real-time clock IC, with ESP32 PCF2129 Operates at 3.3V The PCF2129 is a real-time clock IC that can run at 3.3V, and is connected to the micro... 2021.05.15 Rose Electronics
Electronics All the numbers were displayed by dynamically lighting them with the beautiful and transparent VFD display tube IV-27M In the previous article, I displayed only one digit, but this time I would like to dynamically light up and display ... 2021.05.12 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 a... 2021.05.12 Rose Electronics
Electronics I turned on the VFD indicator tube IV-6 I lit up a VFD indicator tube IV-6 that I bartered with a retro indicator tube enthusiast in Ukraine. Here are th... 2021.05.01 Rose Electronics
Electronics ESP32 reduced current consumption during DeepSleep by putting HX711 into power down mode. I configured a scale with HX711 and made a mailbox that notifies me when there is mail. By replacing the regulator w... 2021.04.28 Rose Electronics
Electronics ESP32-DevKitC's DeepSleep is consuming quite a bit of current, so I investigated the cause. The ESP32-DevKitC is a board that makes it easy to use the ESP32. I often use not the Espressif Systems genuine E... 2021.04.27 2021.04.28 Rose Electronics
Electronics Added thermometer to NTP calendar & clock of Canon Canola L1211 display I added a thermometer to an indicator that was manufactured during the short period before the transition from Nixie t... 2021.04.25 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 tim... 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. ... 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 ... 2021.04.17 Rose Electronics
Electronics The NTP calendar & clock was completed by controlling the display of Canon Canola L1211 with ESP32. Making the clock with a Canon Canola L1211 display unit I would like to make the clock, since the work I have done un... 2021.04.14 Rose Electronics
Uncategorized The display of Canon Canola L1211 was dynamically lit with ESP32, and 11-digit numbers could be displayed. Each segment of the display unit of Canon Canola L1211 can be turned on and off by ESP32Last time, I was able to tur... 2021.04.14 Rose Uncategorized
Electronics Canon Canola L1211's display unit controlled by ESP32 to display a single digit number. Each segment of the display unit of Canon Canola L1211 can be turned on and off by ESP32. For more information about... 2021.04.14 Rose Electronics
Electronics The mailbox with a built-in "scale" that notifies me by e-mail when a mail arrives has been completed! I have completed a mailbox that detects the arrival of mail by weight and notifies me by e-mail. Weighing with HX71... 2021.04.14 Rose Electronics
Electronics Make a power supply circuit (step-up/step-down DCDC converter) to run ESP32 on about two batteries. ESP32 is a microcontroller that operates at about 3V to 3.3V. I'm going to make a DCDC converter circuit to run on a... 2021.04.07 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 batteries ESP32-DevkitC is a board that allows you to use ESP32 easily. ESP32-De... 2021.03.28 Rose Electronics
Electronics Sending measurement data to Ambient to check the stability of strain gauge "scales". I would like to leave the "scale" I made the other day outdoors for a few days to check the fluctuations in the read... 2021.03.27 Rose Electronics
Electronics See if I could measure the correct weight with a "scale" made from a strain gauge. I did an experiment to see if the "scale" and the program I made the other day could measure weight correctly. H... 2021.03.27 Rose Electronics
Electronics Modify the circuit of the HX711 module to operate at 3.3V and measure the weight with ESP32 HX711 module is 5V specification The HX711 module sold on Amazon is designed to work with a 5V power supply. Since th... 2021.03.21 Rose Electronics
Electronics Made the e-paper control PCB with GPS function. I made a control board for an e-paper that has a GPS module and can keep accurate time at any time. Printing solder... 2021.03.10 2021.03.17 Rose Electronics
Electronics How to make an alarm clock-like nixie tube clock(3/4) Remodeling of the alarm clock Now that the PCB is complete, I'd like to modify the alarm clock to incorporate the board and assemble an alarm cloc... 2020.11.05 2021.04.18 Rose Electronics
Electronics How to make an alarm clock-like nixie tube clock(2/4) Soldering and Assembly of Main Board Since the surface-mounted components of the main board have already been mounted, only the DIP-style components are ... 2020.11.05 2021.04.18 Rose Electronics
Uncategorized Animation can now be displayed on e-paper The CPLD is used to perform high-speed serial-parallel conversion between the electronic paper and the ESP32 microco... 2020.11.03 2021.03.17 Rose Uncategorized
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 usin... 2020.11.03 2021.03.17 Rose Electronics
Electronics ESP 32 - WROVWE - B Gets 4 MB Of Memory We purchased ESP 32 - WROVER - B, which preserves the functionality of ESP 32 and has an additional 8 mb of PSRAM (p... 2020.11.03 2021.03.17 Rose Electronics