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...
Contents The invention belongs to the technical field of multiphase flow measurement of crude oil well produced liquid, and relates to a measurement method of a constant volume pipe piston type oil, ...[Details]
With the hot sales of lithium-ion electric vehicles in large and medium-sized cities in China such as Beijing, Shanghai, Suzhou, and Hangzhou, more and more electric vehicle manufacturers have begu...[Details]
Ford uses a series of sensors to detect possible collision risks and warn the driver.
Ford claims that the obstacle avoidance system will first warn the driver of the danger, and if they do not...[Details]
According to netizens, the shooting function of the WeChat chat interface has been improved. The long press to shoot short videos has been extended from the original maximum of 15 seconds to 1 minute...[Details]
Today, many well-known digital bloggers have revealed news about the OPPO Reno4 series. Let’s take a look. The picture shows that the OPPO Reno4 series focuses on 5G video, has multiple raised camera...[Details]
Recently, Sungrow's SG500MX photovoltaic inverter successfully passed the high voltage ride-through test at the National Energy Solar Power R&D (Experimental) Center of the China Electric Power Res...[Details]
According to the World Economic Forum, Generation Z, born between the mid-1990s and the early 21st century, will account for 32% of the world's population (7.7 billion people) in 2019, surpassing the...[Details]
Last month, the 8GB version of the Asus ROG Phone 3 had appeared on the Geekbench benchmarking platform. Now, the higher RAM version of the phone has appeared on Geekbench again. On June 3, a...[Details]
Innovative "co-investment + sharing" battery full life cycle service
Guangzhou, April 26, 2024 /PRNewswire/ -- Zhejiang Huayou Recycling Technology Co., Ltd. (hereinafter referred to as "Hualo...[Details]
According to MacRumors, in an internal memo, Apple said it would add the iPhone 6 Plus to its obsolete product list on December 31, meaning five years have passed since Apple stopped selling the devi...[Details]
On April 1, Honeycomb Transmission officially announced that the 2 millionth 7DCT transmission rolled off the production line was held at the Xushui Intelligent Transmission Factory. At the event, Ho...[Details]
Although smartphones have only been around for about a decade, the changes in smartphone screens are very rapid. From the early size war to today’s refresh rate upgrades, the multi-faceted upgrades i...[Details]
/*Define the number of bits of the LED digital tube. This driver only implements 3-bit and 4-bit operations, so the value of LED_BIT_COUNT can only be 3 or 4*/ #define LED_BIT_COUNT 4 /*********...[Details]
1. Introduction
Pulse meter is a common electronic electricity meter on the user side of the power system. For remote electronic meter reading system, reliable and accurate measurement of ...[Details]
On the evening of October 22, at the HarmonyOS Night and Huawei's All-Scenario New Product Launch Conference, my country's first domestically produced mobile operating system, Huawei's HarmonyOS NE...[Details]