Location:
Search - time switch pcb
Search list
Description: 带温度显示的电子钟，有闹钟。整点报时等功能。有PCB图。显示不是中断显示，所以按住按键时间长的话会有不显示的现象，但放开开关就会好了-With electron temperature shown in the clock has an alarm clock. The whole point timekeeping functions. PCB plans have. Display is not interrupted show, so hold down the button, then there will be a long time do not show the phenomenon, but the switch will open up better
Platform: |
Size: 2715648 |
Author: 井威 |
Hits:
Description: 基于 CS5550 工业测量仪表的设计：ADCMeter.ddb 中包含电路原理图和样品PCB图。本系统以 STC 系列 51 单片机为控制核心，使用高精度 CS5550 A/D 芯片来采集微弱的模拟信号量（如热电偶，热电阻信号量），可在线校准（零校准，满量程校准），校准数据保存到 93C46 中，作为以后 CS5550 运行的校准参数。本系统还包括两行八个数字位的数码管实时地显示采集数据，并可通过板上按键输入，进行输入信号变换的切换。另外还可增加串口通信部分，将采集的数据传输给上位机或其它控制单元。还具有超限报警输出、控制输出等功能。本系统以模块的方式进行编码，各模块的相关程序以文件为单位进行编写。-Based on the CS5550 industrial design of measuring instruments ADCMeter: DDB contains j circuit principle diagram and sample PCB. This system to STC series 51-series microcomputer as the core, the use of high precision CS5550 A/D chip to collect weak analogue quantity (such as thermocouple signal), thermal resistance, on-line calibration (zero calibration, full range calibration), calibration data to 93C46, as CS5550 operation after the calibration parameter. This system includes two lines of eight digit place of digital data real-time display tube, and through the plate buttons on the input signal transform input, the switch. Also can increase the serial communication, data gathering part to PC or other control unit. Also has the off-gauge alarm output, the output control etc. Function. In this system, the module way of each module in relevant procedures for the units in written documents.
Platform: |
Size: 382976 |
Author: limei |
Hits:
Description: 1.5位数码管显示，静态驱动
* 2.定是功能（设定时||分||秒,到时间报警）
* 3.锁定，清除，断电记忆功能
* 4.按键加一功能&&嗡鸣器响一声
* 5.接口可扩展如：感应，轻触开关
* 6.采用显示板&主板分开（如果能做成一块板也可以，元件可以放在显示板后面）
* 7.外发制作PCB，耐用
* 8.键值分布：(从下往上)
* K1--“-”，K2--“+”，K3--“清零/时间调整”，K4--“功能键”
* 模式说明：共4个模式分别为，计数模式，-1.5 digital display, the static drive* 2. Be functional (settings | | hours | | seconds, the time alarm)* 3. Lock, clear, power-off memory function* 4. Button-plus-one device function & & Buzz sounds for* 5. interface can be extended, such as: sensors, touch switch* 6. using separate display board & board (if they can also be made of a board, components can be placed behind the display)* 7. outsourced production of PCB, durable* 8. key distribution: (from bottom to top)* K1- " -" , K2- " +" , K3- " clear/time adjustment" , K4- " function keys" * Mode Description : A total of four models, respectively, counting mode,
Platform: |
Size: 74752 |
Author: chen |
Hits:
Description: SILABS新推出SI4463完整DEMO板原理图、PCB图、DEMO程序下载。传输距离1000~2000米
SILABS新推出EZradioPRO系列RFIC:SI4432,适合长远距离的无线数据传输应用.其发射功率+20dbm,接收灵敏度-116dbm,通讯距离2000米
SI4463特点
频率范围= 119–1050 MHz
接收灵敏度 = –126 dBm
调频模式
(G)FSK and 4(G)FSK
OOK and ASK
最大输出功率
+20 dBm (Si4464/63)
+16 dBm (Si4461)
+13 dBm (Si4460)
PA支持 +27 dBm
低功耗
10/13 mA RX
19 mA TX at +10 dBm (Si4460)
待机模式
30 nA shutdown, 50 nA standby
波特率= 0.123 kbps to 1Mbps
快速唤醒转换时间
支持电压= 1.8 to 3.6 V
Excellent selectivity performance
60 dB adjacent channel
> 73 dB blocking at 1 MHz
天线多样性和T / R开关控制
高度可配置的包处理程序
TX and RX 64 byte FIFOs
自动频选(AFC)
自动增益控制 (AGC)
低成本
Low Battery Detector
温度传感器
20-pin QFN 封装
IEEE 802.15.4g compliant
FCC Part 90 Mask D
-SILABS new EZradioPRO series RFICs: SI4432, suitable for long-term distance wireless data transmission applications. Emission power+20dbm, receiver sensitivity-116dbm 2000 meters communication distance the SI4463 characteristics of the frequency range = 119-1050 MHz Receiving Sensitivity =-126 dBm FM mode ( G) FSK and 4 (G) FSK OOK and ASK the maximum output power+20 dBm (Si4464/63)+16 dBm, (Si4461)+13 dBm, (Si4460) PA to support+27 dBm low-power 10/13 mA RX 19 mA TX at+10 dBm (Si4460) 30 nA of the shutdown of the standby mode, 50 nA, the standby baud rate = 0.123 kbps to 1Mbps fast wake-up voltage conversion time support = 1.8 to 3.6 V Excellent selectivity Performance 60 dB adjacent channel> 73 dB, the blocking at 1 MHz antenna diversity and T/R switch control highly configurable packet handler TX and RX 64 byte FIFOs automatic frequency-selective (AFC) Automatic Gain Control (AGC) low-cost Low Battery Detector temperature sensor 20-pin QFN package IEEE 802.15.4g compliant FCC Par
Platform: |
Size: 2699264 |
Author: 王超 |
Hits:
Description: 很好的东西，用硬件实现的8路数码显示抢答器，有仿真和硬件pcb电路。很好的东西值得收藏。具体功能如下：
（1）抢答器同时供8名选手或8个代表队比赛，分别用8个按钮S0 ~ S7表示。
（2） 设置一个系统抢答指示灯，一个清除和抢答控制开关S，该开关由主持人控制。
（3） 抢答器具有锁存与显示功能。即选手按动按钮，锁存相应的编号，并在七段数码管上显示选手号码。选手抢答实行优先锁存，优先抢答选手的编号一直保持到主持人将系统清除为止。
-Good things, with 8-way digital hardware implementation show Responder, a simulation and hardware pcb circuit. Good things worthy of collection. Specific functions are as follows:
(A) Responder same time for eight players or eight team competition, respectively, with eight buttons S0 ~ S7 representation.
(2) to set up a system to answer in light, a clear and Responder control switch S, the switch is controlled by the moderator.
(3) Responder has a latch and display capabilities. That players press the button, the latch corresponding number, and in the seven-segment digital tube display player number. Players Responder implement priority latched priority answer the player s number has remained to host the system cleared.
Platform: |
Size: 1323008 |
Author: 林健 |
Hits:
Description: 1. 建立一个结点，即 PCB 块包括用户标识域、状态域（执行、等待、就绪）、 link 域。
2. 建立三个队列（执行队列、就绪队列、等待队列）。
3. 根据进程状态转换实现对三个队列的具体操作。具体的驱动可以采用时间片算法或手动调度的形式完成三个状态之间的转换
4. 用 switch 选择语句选择状态。
5. 按照自己的设定能完成所有的状态转换的运行（包括创建和运行结束）。
-1 create a node, i.e. PCB block includes a user identifier domain, domain (executive, waiting, ready), link domain.
2 to establish three cohort (execution queue, queue, waiting queue).
3 according to the state transition process of realization of the concrete operation of the three queues. The driver can use time slice scheduling algorithm or manually complete the form of conversion between the three state
4 using switch select statement selection state.
5 in accordance with their own set to complete all of the state transition of operation (including the end of creating and running).
Platform: |
Size: 51200 |
Author: 广告 |
Hits:
Description: PCB进程切换实现代码，用时间片算法和优先级算法实现。-PCB process switch implementation code, using time-slice algorithm and priority algorithm
Platform: |
Size: 2048 |
Author: 冉晨 |
Hits: