9824 Results for "《〈 문의 OIO↗5793↗7458 》〉 셔츠룸후기た《〈 문의 OIO↗5793↗7458 》〉 ⑷plenty㎋셔츠룸후기셔츠룸후기んteeth 셔츠룸후기선릉셔츠룸 강남셔츠룸￦셔츠룸ⓤsilverⓞ"

I didn't choose the MCU ... it chose me!
Log from TI-57 Programmable Calculator Hardware Retrofit
I like the STM32 ARM cortex MCU family. They are well documented, readily available, and cheap 'breakout boards' for them abound. The MCU retrofit must fit nicely in the space of a 28-pin 0.6" pitch DIP, so package size is key. The STM32F103 is...

Driving the Display
Log from TI-57 Programmable Calculator Hardware Retrofit
The TI-57 has a multiplexed 12-digit common cathode LED display. The corresponding 8 segments of all 12 digits are connected together; sort of. It turns out that TI economized on IC package pins by ”doubling up” the decimal point segment...

Power Supply and Lid
Log from TI-57 Programmable Calculator Hardware Retrofit
Rcl57mcu wants a 3.5-5V supply. So, even if I could resurrect the dead BP-7 NiCd pack/lid, it won’t work for this upgrade. I will instead recycle the tried-and-true USB charged 3.7V LiPo supply that I’ve used for HP Classic, HP-28S, and TI-58/59 supply...

PSU #001, a PL320
Log from Thurlby Thandar PSU repair
Fault label: "Sparky".2024-03-01Opened case. Mains cable enters through grommet and is wired to the front-panel mains switch. There is no IEC filtered inlet.No sparking seen, even if wires poked with an insulated plastic rod (a Biro).Dials set to maximum,...

Day 2 (part 2) Rap Music & "Shopping"
Log from Cultural Integrity (at the Dethrone Hackathon)
Julia and I rushed over to TAP plastics, hoping to get our acrylic sheet before closing. On the car ride over, I opened my CD case and asked Julia, "is there any music thatyou'd like to hear?" "You just have old people music, right?'" she said. She wasn't...

Day 2 (part 3): Spray Cans, Ultrasonics, and Mischief
Log from Cultural Integrity (at the Dethrone Hackathon)
Once we got back to my apartment, the fatigue began to set in. It had been a long day already, with nonstop running around. I asked Julia if she could wait for a few minutes while I rested. She was totally understanding and didn't give me...

Rev1 Display Bodge
Log from Multimeter
To make the display work on revision 1, I bypassed the display driver and wired the pico IO pins strait to the segment LEDs. It is a little faint, as the display driver circuit worked completely differently, but it works to test the display.

From prototype to product creation
Log from VGA videocard for microcontrollers
First of all, you should pay attention to the ROM used. The flash-ROM chip from an old computer motherboard has a finicky parallel interface where the address is written in two runs. This complicates the operating logic and increases access time. Additionally,...

Step 2: Firmware about sensor
Log from Weather Station With A7670 -- Remote Monitoring
At first, we need to prepare the environment for ESP32 development board programming in arduino, and you can cheak this guide.This is a library for our Monochrome OLEDs based on SSD1306 drivers. #include This library allows you to communicate with...

Development boards and wobbling madness!
Log from Wobble
I started writing some programs to control the DRV8825 using a few small embedded boards I had lying around - the Metro by Adafruit and Arduino Uno both of which are based on the ATMEGA328P processor. I went with these because I wanted something...

1080 LEDs in the Palm of Your Hand!
Log from MiniSphere
We're starting to finalize some of the bigger pieces of this project, so we're excited to start sharing our progress! We've got the geometry and LED arrangement set, now we're testing our electrical design and getting started on writing some animations....

2024-03-07
Log from M8B 2.0
This is our action plan for our improved Magic 8 Ball: have a better and bigger screen, with more pixels and with wich we could display more than 16 letters, potentially even showing picturesvoice speaker to read the message when it's displayedimprove...

Thursday March 14
Log from Light Link
So last week in class, we thought of many projects like something that uses a Kinect, a furniture piece that makes delightful cocktails, but at the end of the class, we decided on something that could be useful for our international semester. Just in...

3D drawing housing
Log from Streaming Audio Player (squeezelite)
LED's

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