Turn an LED off when there is 3V input Ask QuestionAsked 3 days agoActive todayViewed 171 times1 I have an LED (5mm, 2V 20mA) which is always on from a 12V supply. (I assume it […]
Simplest method to reliably detect small currents
Simplest method to reliably detect small currents Ask QuestionAsked yesterdayActive yesterdayViewed 77 times0This question was migrated from Raspberry Pi Stack Exchange because it can be answered on Electrical Engineering Stack Exchange. Migrated yesterday. I am trying to detect when […]
Raspberry Pi OS Update Kills Flash By Les Pounder a day ago Gone in a Flash Comments (3) (Image credit: Future) The end has finally come for Adobe Flash on the Raspberry Pi. What […]
WS2812B RGB LED Breakout 全彩驱动 彩灯 智能控制模块
1位 圆形 WS2812B RGB LED Breakout 全彩驱动 彩灯 智能控制模块 – ¥0.63https://item.taobao.com/item.htm?spm=a1z1r.7974869.0.0.269c3ad4BrZ0Hp&id=549301603151 WS2812B RGB LED Breakout 全彩驱动 彩灯 智能控制模块 直径12.5mm 主要特点 智能反接保护，电源反接不会损坏IC。 IC控制电路与LED点光源公用一个电源。 控制电路与RGB芯片集成在一个5050封装的元器件中，构成一个完整的外控像素点。 内置信号整形电路，任何一个像素点收到信号后经过波形整形再输出，保证线路波形畸变不会累加。 内置上电复位和掉电复位电路。 每个像素点的三基色颜色可实现256级亮度显示，完成16777216种颜色的全真色彩显示，扫描频率不低于400Hz/s。 串行级联接口，能通过一根信号线完成数据的接收与解码。 任意两点传传输距离在不超过5米时无需增加任何电路。 当刷新速率30帧/秒时，级联数不小于1024点。 数据发送速度可达800Kbps。 光的颜色高度一致，性价比高。 主要应用领域 […]
MX1508
供应MX1508 SOP-16 四通道双路有刷直流马达驱动IC 产品价格：￥3/ 10pcs厂 家：LIVEIC封 装：SOP-16批 号：13+数 量：8898 点此询价 产品咨询直线：13686868407 产品详细说明 MX1508 SOP-16 四通道双路有刷直流马达驱动IC概述该产品为电池供电的玩具、低压或者电池供电的运动控制应用提供了一种集成的有刷直流马达驱动解决方 案。电路内部集成了两通道采用N沟和P沟功率MOSFET设计的H桥驱动电路，适合于驱动电动玩具车的转向 轮及后轮驱动,(驱动有刷直流马达或者驱动步进马达的两个绕组)。该电路具备较宽的工作电压范围（从 2V到9.6V），转向轮最大持续输出电流达到0.8A，最大峰值输出电流达到1.5A。后轮驱动最大持续输出电 流达到1.5A,最大峰值输出电流达到2A。该驱动电路内置过热保护电路。通过驱动电路的负载电流远大于电路的最大持续电流时，受封装散热能力 限制，电路内部芯片的结温将会迅速升高，一旦超过设定值 (典型值150℃)，内部电路将立即关断输出功 率管，切断负载电流，避免温度持续升高造成塑料封装冒烟、起火等安全隐患。内置的温度迟滞电路，确 保电路恢复到安全温度后，才允许重新对电路进行控制。 。特性:a. 低待机电流 (小于0.1uA)；b. 低静态工作电流；c. 集成的H桥驱动电路；d. 内置防共态导通电路；e. 低导通内阻的功率MOSFET管；f. 内置带迟滞效应的过热保护电路 (TSD)；g. 抗静电等级：3KV […]
Turn an led off when there is 3V input
Turn an led off when there is 3V input Ask QuestionAsked todayActive todayViewed 17 times1 I have a LED (5mm , 2V 20mA) which is always on from a 12V supply. (assume it has some […]
MX1508 motor driver flyback diode controversy
MX1508 motor driver flyback diode controversy Ask QuestionAsked todayActive todayViewed 18 times0 Hi I am trying to use the MX1508 motor driver with my 6V dc motor, but I’ve read criticism that it doesn’t have […]
Neo-6/7/8M notes
Connecting RS232 GPS Board to Raspberry Pi Ask QuestionAsked todayActive todayViewed 9 times0 I purchased a NEO-6M GPS board to connect to my Raspberry Pi, and when I bought it I didn’t realize that it […]
I2C bus fails after a few sensor reads
@RobH. I just saw that you are using Rpi3B+, and there is a big problem. It was some two years ago I found a rpi pro complaining that he could not set […]
RS485 Troubleshooting
RPI Linux RS-485 with CH340B chip (Sometimes misses 7th byte, on specific reading) Ask QuestionAsked todayActive todayViewed 10 times-1 I have a problem with RS-485 communication. Sometimes reading misses 7th byte (so it misses start […]
