话说这个电流表是这个吧AMMETER-MILLI mA其他的电压表啥的也找不到
2017-04-02 18:00
be wake up from keyscan or GPIO.I have worked through the following steps:1. I connect a Ammeter
2018-08-23 13:09
目前，我正在使用开发板 Nucleo-WL55JC1。我想知道是否可以在我的开发板上隔离和测量组件（例如 RF 或外围设备）的电流或电压？我的主要目标是单独测量板上组件的功耗。希望看到你的帮助。
2022-12-05 06:30
大家好，我有这个E3633A可编程ps型号我用来测量伺服电机的电流。我有一个带有scpi命令的程序来获取空闲并从电源运行当前读数。我用模拟毫安表与pps电流读数进行了比较，我想知道他们为什么在检测最大电流方面有所不同？当模拟毫安表的分流器仅达到约180毫安时，我用pps读取大约300+毫安。我有一个伺服系统与模拟毫安表串联连接到pps，这样当我命令伺服器移动到一定角度时，我可以同时比较读数。为什么会这样？我的伺服电机的运行电流读数非常重要，因为我使用模拟毫安表的读数符合伺服电机的规格，而pps则不符合。我是否需要计算pps当前读数以获得与我的模拟毫安得到的相同的结果？谢谢。 以上来自于谷歌翻译 以下为原文Good day to all, I have this E3633A programmable ps model i am using to measure the current in my servo motor. I have a program with scpi commands to fetch idle and running current readings from the power supply. I made comparisons with the pps current reading with the analog milliammeter and i want to know why do they differ in detecting the max current? I read about 300+ milliamps with the pps when the shunt of the analog milliammeter only reach about 180milliamps. I have a servo connected to the pps in series with the analog milliammeter so that i can compare the readings at the same time when i command the servo to move to a certain angle. Why is this so? My running current reading for the servo motor is important that my reading with the analog milliammeter complies with the specs of the servo motor and the pps don't. Do i need to compute the pps current readings to get the same result as what my analog milliameter gets?. Thanks.
2019-01-14 11:11
, +/- 20 ppm/C, 5 W) in series with an ammeter as shown in Figure B-1 (B) and follow the procedure
2018-10-22 16:16
你好，我正在使用IIS2DH来处理我的应用程序。但是，当我测量它消耗的电流时，问题就会出现。在25Hz，INT2持续时间为40ms，所有轴都启用了低功率，我观察的电流为500uA，这与IIS2DH数据表中没有提到的相符。配置如下所示：CTRL_REG1：0x3FCTRL_REG4：0x20CTRL_REG6：0x20INT2_CFG：0x04INT2_THS：0x05INT2_DUR：0x01以上配置适用于我的应用程序。但是，它消耗了大量的电流。我错过了什么吗？请帮忙。另外，有人可以向我解释一下CTRL_REG6上的BOOT_I2位如何工作？它的功能是什么？我在哪里可以找到有关它的信息？ ＃iis2dh以上来自于谷歌翻译以下为原文 Hello,I am using IIS2DH to work for my application. But the problem rises when I measure the current it is consuming. At 25Hz with 40ms INT2 duration and Low Power Enabled with all axis, I am observing a current a current of 500uA which is not according to what mentioned in the data sheet of IIS2DH. The configuration is shown below:CTRL_REG1: 0x3FCTRL_REG4: 0x20CTRL_REG6: 0x20INT2_CFG: 0x04INT2_THS: 0x05INT2_DUR: 0x01The above configuration works perfectly for my application. However, it is consuming a lot of current. Am I missing something? Please help.Also, could anyone explain to me as to how BOOT_I2 bit onCTRL_REG6 work ? what is its function? Where can i find information about it? #iis2dh
2018-09-28 16:49
开始我是想做一个通过输入0-4V得到输出电压0-9V的模块，然后参考最简单的同相比例放大电路，如图：我按照此图用仿真软件试过，其中VCC用12V，R2用10KΩ，R1取10KΩ电位器。然后无论VIN是0-4V，VOUT的数字始终是10.5V（即是12-1.5=10.5V），电位器调节到底，VOUT始终就是10.5V。请问是哪部分错了
2019-08-05 17:27
SPI效果很好。我可以睡觉传感器，但当我试图睡觉EnOcean模块时，我发现传感器消耗的电流接近500μA。我在SDI / SDO和SCL上放了两个下拉电阻，在CS_ACC和CS_MAG上拉了两个上拉电阻。以上来自于谷歌翻译以下为原文 The SPI works well. I can asleep the sensor but when I try to asleep the EnOcean module, I see that the sensor consume near 500µA. I have put two pull down on SDI/SDO and SCL and two pull up on the CS_ACC and CS_MAG.
2018-09-20 09:52
为什么zigbee数据发送周期和设定的周期会不一致呢？是什么原因呢？怎样去解决？
2022-02-24 07:14
嗨，大家好，我设法使Vin接地，而我的12V电源连接到我的板上的桶塞上。没有任何神奇的烟雾从我看到的任何芯片中出来，但是我的板不再工作了。当J10跳线设置为3.3V时，3.3V调节器正好在它上面变得相当热（如果我把它放在上面，它可能会烧坏我）。此外，我的VDDD具有连续性的VSSD（即，它短路到地面）当J10在任何位置（包括未附）。我想我的3.3V调节器被吹了，但是它的工作做得很好（用万用表测试，我在中间引脚和大标签上得到3.3V）。我还检查并确认电源电路中的盖帽不具有连续性。下一步该检查什么？或者我在哪里可以买到另一个DeV套装（每个人似乎都缺货）？谢谢，杰夫 以上来自于百度翻译 以下为原文Hi all, I managed to short Vin to ground while I had a 12v supply hooked up to the barrel plug on my board. No magic smoke came out of any of the chips (that I saw), but my board no longer works. When the j10 jumper is set to 3.3v the 3.3v regulator just above it gets rather hot (might burn me if I left it on). Also my VDDD has continuity to VSSD (ie, it's shorted to ground) when j10 is in any position (including not attached). I would geuss my 3.3v regulator was blown, but it's doing its job just fine (tested with a mulitmeter and I get 3.3v on the middle pin and the big tab). I also checkedand confirmed that the caps in the power supply circuitry don't have continuity to gound. Any ideas on what to check next? or where I can buy another dev kit (everyone seems to be out of stock)? Thanks, Geoff
2019-05-20 10:51
