I am now using the GPRS Q24plus module to do a data transmission experiment. The AT commands given by the teacher are all AT# commands, and the responses are all ERROR. I heard that the commands are o...
[i=s]This post was last edited by xjzh on 2019-6-17 02:08[/i]LoRa technology occupies an important position in the development of the Internet of Things. Because it is easy to build and deploy, it has...
I use 149, and after initialization, I let it enter low power consumption state. I use a port to realize external interrupt. Can I let it exit low power consumption and continue to execute the main pr...
I would like to ask you for advice on how to amplify the small current signal of a DIY clamp meterI am currently DIYing a clamp ammeter
The target parameter is to measure current from mA to 10A
The se...
[b]The frequency range of a speaker[/b][color=rgb(51, 51, 51)][font="][size=12pt] refers to the range between the lowest effective playback frequency and the highest effective playback frequency that ...
Recently, the U.S. Department of Commerce announced that it would prohibit companies in the country from selling any electronic technology or communication components to ZTE, a Chinese communicatio...[Details]
In the actual project development process, hardware circuits often need to be modified, and the modified parts need to modify the driver. Thinking about the coming and going of such requirements is t...[Details]
The program got stuck during LCD initialization. Through hardware debugging, it was found that it was stuck in the Delay_ms() function. Going to the definition, it was found to be a macro definition ...[Details]
0. Preparation First use st-link to connect the stm32 core board and PC for burning St-link Stm32 3.3V 3.3V GND GND SWDIO PART SWCLK DCLK Then connect with USB serial port board to v...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
The day before yesterday, another mainland technology company submitted a prospectus to the Hong Kong Stock Exchange. The company is called "Jia Nan Creative (hereinafter referred to as 'Jia Nan')"...[Details]
On May 16, in response to
the public opinion storm caused by
Lenovo's
"
5G
voting" incident,
Lenovo
Holdings Chairman and
Lenovo
Group Founder Liu Chuanzhi, Lenovo Gr...[Details]
According to TechRadar, given rumors that
Google
is developing a Pixel Watch
,
the
recently renamed Wear OS
smartwatch
operating system may soon be able to show its full cap...[Details]
The key is the configuration of registers. The T1 timer (16 bits) of CC2530 needs to configure three registers: T1CTL, T1STAT, IRCON Here is just a brief introduction. For more details, please refer ...[Details]
Use common anode digital tube and independent keyboard to connect P1 and P2 ports of single chip to realize answering machine The procedure is as follows: #include reg52.h void delay(unsigned char n)...[Details]
One addend is in the on-chip RAM 40H, 41H, 42H units, the other addend is in the on-chip RAM 43H, 44H, 45H, and the sum is stored in the 50H, 51H, 52H units, with the carry bit stored in 00H. Please ...[Details]
MCS-51 single-chip microcomputer timer/counter experiment programming program Programming requirements: 1. Connect a light-emitting diode LED to the P1.0 pin, light up for two seconds, turn off for o...[Details]
Assume that both the augend NA and the addend NB are three-byte compressed BCD codes, which are stored in the internal RAM units 20H~22H and 30H~32H, respectively, with the low digit first and the hi...[Details]
It is required to use MCS-51 microcontroller to sort data. 1. Sort the 8 data in ascending order; 2. The data to be sorted is stored in the internal data memory address units 30H-37H, which are 34H, ...[Details]
//******************************************************************************/ #include msp430.h //Note: There must be a delay between two transmissions, otherwise it cannot be sent again, seria...[Details]
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