I use CC2541 to communicate with Bluetooth module DS-BT19-S Bluetooth module.
Now it is connected, but the CC2541 sends data and the Bluetooth module cannot receive it.
Use the mobile phone LIGHTBLUE ...
Dear experts, I would like to ask, for digital quantity input into the single-chip microcomputer, are there any chips available, such as liquid level switches, 24V, there are 5, I want to connect to t...
[i=s]This post was last edited by decade_0809 on 2019-1-2 22:49[/i] [b][color=#5e7384]After receiving the development board, I unpacked it and found that it only came with a data cable, a development ...
[color=#008000][backcolor=transparent][font=Tahoma,]The contract is supreme. RT-Thread Nano, this minimalist monster, becomes very powerful when used with the NB tool MDK. Basically, you can complete ...
I. Basic PrinciplesAs shown in the figure above, the general steps are: 1) GPIO charges capacitor C to Vcc through resistor R; 2) The GPIO outputs 0, capacitor C discharges through R, and the Timer st...
On January 17, 2019, the State Grid Corporation of China held its third and fourth staff representative meeting and 2019 work conference, proposing to focus on building a world-class energy interne...[Details]
To simulate a signal or to generate a standard signal we need, how to achieve this? In fact, there is a device called a signal generator that can achieve such a function very well. This kind of equip...[Details]
Use msp430g2553 to control the 1602 LCD to display time, and you can set the time by pressing the button. I made two modes: forward timing and countdown. /******************************************...[Details]
On May 23, 2019, at the NIWEEK 2019 event, Weihua Technology, a professional brand of semiconductor test solutions, announced its cooperation with National Instruments (NI) of the United States and w...[Details]
I am working on the online upgrade bootloader program for Freescale 16-bit microcontrollers. There are two questions that I am not very clear about. I would like to ask the experts in the forum. 1. ...[Details]
According to South Korean media businesskorea, Japan announced export restrictions on South Korean companies last year, which raised concerns among South Korean small and medium-sized semiconductor m...[Details]
Whether the price can be negotiated is the key to this cooperation. Recently, the news that BYD will supply blade batteries to Tesla has attracted widespread attention from many people in the indu...[Details]
It plans to invest 5.2 billion yuan to build a lithium-ion battery project in Lanxi, Zhejiang.
On March 25, Xinwanda (300207) announced that the company has signed a "Project Investment Agreem...[Details]
Abu Dhabi sovereign wealth fund Mubadala Investment Company announced that it has begun preparations for an initial public offering (IPO) of its chipmaker GlobalFoundries in the United States, accord...[Details]
Respiratory KZ leakage test is used to test the filtration efficiency and protective effect of respiratory KZ and protective masks. The test standard refers to GB2626-2019. GB2626-2019 Respiratory ...[Details]
The MAX44260/MAX44261 features high speed, high accuracy, low noise, and low voltage, making them ideal for most signal processing functions in portable and industrial equipment, such as signal filte...[Details]
1. Fault prompt: (I forgot to record the specific text, but the general meaning is) 1 The target device cannot be found. . . . ; 1.2 Too much current flows into VDD, check the clock line and signal l...[Details]
#include //Header file containing 51 MCU register definitions
sbit sound=P3^7; //Define the sound bit as P3.7
unsigned int C; //Store the timing constant of the timer
//The followin...[Details]
introduction
The time-of-use smart meter is a novel single-chip intelligent energy metering product that adapts to the time-of-use electricity system. It not only retains the main functions of...[Details]
MacRumors reports that engineering verification and testing (EVT) for the 2020 5G iPhone 12 models will be completed by the end of this month, meaning production of the new phones will begin i...[Details]
Wireless Connectivity
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