Introduction A while ago, I posted an article about the JDY-31 Bluetooth module, so today I am writing an article about another model of Bluetooth module. Because the JDY-31 can only act as a slave, while the HC-05 can act as both a master and a slave. This is understandable, as the JDY-31 is relatively … Read more
The preliminary round of the RM campus competition has just passed. I wonder if everyone has been paying attention to it? For those who did not participate, there is no need to worry. Here is the most comprehensive tutorial on using the Bluetooth module. (Including the largest engineering drawing assignment ever) In the RM campus … Read more
HC-05 The Bluetooth module BT-HC05 is a high-performance Bluetooth serial module. 1. It can be paired with various smart terminals with Bluetooth capabilities, such as computers, Bluetooth hosts, mobile phones, PDAs, PSPs, etc. 2. It has a wide baud rate range of 4800~1382400 and is compatible with microcontroller systems. 3. After two Bluetooth modules in … Read more
Click on “Gua Gua Little Master” above, select “Pin/Star Official Account“ Useful Resources Delivered First Hand! Summary: I wonder how everyone prints debugging information during microcontroller development. Most likely, they use serial debugging to print. In most cases, serial port 1 is usually reserved for debugging printing during board manufacturing and coding. But what if … Read more
This article is an excellent piece from the KX forum, authored by KX forum user ID: blck四 In my usual research on binary vulnerabilities and kernel issues, I have found answers on KX, and I am very grateful to these predecessors for sharing their problem-solving ideas, which helps future generations avoid pitfalls. Device Information and … Read more
I have been busy with final exams for a while, and I apologize for the delay. In this chapter, we will continue from the last section that we didn’t finish. After getting the PCB soldered, we need to program this chip. Main Content First, let’s take a look at the actual photo after soldering. Let’s … Read more
The first technical article of 2021, is it earlier than usual? ▉ Overview of RS-485 RS-485, like RS-232, is a serial communication standard. The current standard name is TIA485/EIA-485-A, but it is commonly referred to as the RS-485 standard. RS-485 is widely used in industries such as automation, automotive, and building management. RS-485 bus compensates … Read more
Search on WeChat Technical Training RS485 interfaces are composed of half-duplex networks, generally using two-wire systems, often employing shielded twisted pairs for transmission. This wiring method allows for a bus topology structure, which can connect up to 32 nodes on the same bus. Initially, data was output as analog signals for simple process quantities, and … Read more
#RA MCU Testing Guide A new topic has arrived! After saying goodbye to the PWM waveform rhythm, this time we will focus on the indispensable “information bridge” – #Serial Communication. The Renesas Embedded Encyclopedia will guide everyone to explore the configuration and data transmission of serial communication step by step based on the RA-Eco-RA2L1 development … Read more
Let’s explore the mysteries of DSP To explore DSP The DSP series main control chips are widely used in power electronics and switch-mode power supply circuits. Their powerful data computation and fixed-point floating-point processing capabilities make them extensively used for data acquisition and algorithm processing in circuits. Moreover, TI and ADI’s DSP chips come with … Read more