Buy from here. Offical website. Steps to make it work in arduino: 3. Burn these examples To try the wifi example 2. Change the wifi ID and password, case sensitive 3. Run it and see the result in serial monitor, set the baudrate to 115200. It grab the html from outside, see the code then […] 2023/07/17

This little board is nearly the same size as nano but embedded with a NRF24L01, and also very cheap $4 USD. To make it works: The “RF24 > Scanner” will works like below 100% compatible with Arduino nano 2023/07/17

altera and xilinx probably copying each other 2023/07/16

3. Change the no of hart to 1 Result : Step over fully work 2023/07/15

https://radiokot.ru/circuit/digital/pcmod/72/ 2023/07/14

STK500 is better than MKII since it supports high voltage programming, it can reset fuses from any status. Step 1: Install the driver. Must be version from date 7th Oct Plug in the USB, if it detected wrong driver, update it by select specific folder’. Need reboot the computer to take effect. Step 2: connect […] 2023/07/12

I got MKII ISP from here. To program Arduino Nano via Microchip studio, nothing special, remember have to select the chip. And Nano D8 pin is B0. Nano bootloader can be found in here. 2023/07/12

Did it one more time and 2023/07/07

Simplest steps To make the RGB led work, put on these three jumpers 2023/07/05

Arduino To make it work in Arduino, don’t use adafruit SSD1306, you have to use SSH110X library. Run the example, no need to modify anycode. 2023/06/27

This video works https://www.youtube.com/watch?v=Mt6U30Yxrr8&t=311s , sample code is in here. 2023/06/21

this youtube works. Oled 0.91 and 0.96 inch both work. Oled can buy in here. The adafruit example is 128×32, need to change to 128×64 for 0.96 inch oled. One thing becareful, 0.96 oled 128×64, the address is still 0x3c, not 0x3d In Arduino IDE, change the address to “3C”, otherwise won’t work 2023/06/17

Kids coding training, lions clubs 2023/06/11

2023/06/11

2023/06/10

Teaching always sharpen my knowledge, fill up all the missing gap of my skill 2023/06/07

I found something: 2023/06/07

2023/06/02

https://www.ee-diary.com/2021/06/how-to-program-atmega328p-using-atmel.html 2023/05/25

bought from here 2023/05/08

Bought from here. user manual：           https://github.com/wuxx/icesugar-nano/blob/main/README.mdwin 7 serial driver：   https://github.com/wuxx/icesugar-nano/blob/main/doc/usbser.infsource and semantics：     https://github.com/wuxx/icesugar-nano Follow https://projectf.io/posts/building-ice40-fpga-toolchain/ . If you got this error: fatal error: ‘ftdi.h’ file not found, then modify config.mk in /Users/peter/workspace/icestorm: -I/usr/local/Cellar/libfdti/1.5-2/include/libftdi1/ If you don’t have libftdi, you can port install libftdi Edit /Users/peter/workspace/icestorm/iceprog/Makefile All examples in https://github.com/wuxx/icesugar-nano , […] 2023/05/01

This code can check I2C address from multiple devices 2023/04/27

One LCD need to set the jump at back to have another I2C address 2023/04/27

Got this board from Taobao. Follow https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions. schematic：https://pan.baidu.com/s/1sNCK3Z4ZXfziKoF-ZYDMiw  Code：pxc4doc：https://pan.baidu.com/s/1SJFlgyIenaM4-TfmT1eLtQ  Code：NICE  or download here If you failed to run the code for this. Hold “Boot” button while uploading the code If you meet “the port doesn’t exist”, do: 2023/04/27

STM32FEBKC6T6 2023/04/21

MyFunction.c Control Code 2023/04/20

Buy from here. Example is in here 2023/04/18

We are developing our own risc-v so we need to have to ability to modify openocd. Here is the quickest guide for you to start when you type “set $s1=0xaabb”, it will jump to here 2023/04/12

Buy from here https://item.taobao.com/item.htm?spm=a1z09.2.0.0.67002e8deFDqTo&id=630403001847&_u=bbuhab0778e , model is STM32F103C8T6 2023/04/11

Tutorial: Create the project Step 1: Open STM32IDE, create the project, choose the right MCU Step 2: Type in project name Step 3: This is project structure Step 4: LED is assign to PC13, set it to GPIO output Then it will generate the setup code Step 5: Blink the led in main, there is […] 2023/04/08

Create a new list in SPO via PNPjs will get 403 access denied, run this script to solve it 2023/03/20

Two maven project, project A load the project B jar, create the object dynamically and invoke the method Project A: Project A: Project B: 2023/03/17

2023/03/10

This graph generated by graphviz, helping students easier understand Professor Jim Huang’s SEMU RISC-V emulator 2023/02/27

啲人問點解香港SI界唔係好似歐美咁，代理隻product跟著自己改裝，跟住越改越advance，咁就要由SI界嘅本質講起 香港SI嘅本質就係做trade 香港係轉口港，香港嘅SI本質無異，兩個字講哂就係做trade，姐係做買賣，左手入貨右手出貨。用一個好啲嘅比喻，SI就好似百老匯，入左啲冷氣你要咪送去你屋企裝囉。唔同嘅只係做嘅客係公司客，賣嘅貨係專業啲咁解。做trade無問題，賺到錢嘅生意就係好生意，香港做得大嘅IT公司基本上都係做trade。如果認清左個本質，咁你就會解釋到呢幾件事 2023/02/13

講得好step by step 2023/02/10

After hacking the qemu risc-v source code, here is the PLIC call map 2023/02/06

2023/02/06

Created the library to export our data structure into logisim, https://gitlab.com/quantr/eda/logisim-library , part of our EDA tool 2023/02/04

The first step of logic synthesis is call “HDL synthesis”, converting verilog into raw netlist. http://ebook.pldworld.com/_eBook/FPGA%EF%BC%8FHDL/-Eng-/Verilog%20HDL%20Synthesis.%20A%20Practical%20Primet%20%28Bhasker%29.pdf 2023/02/01