[经验]

【BML101微波移动检测模组试用体验】硬件解析

2016-10-15 15:40:07

3826 控制器

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【BML101微波移动检测模组试用体验】指令查询 - 控制|传感 - 中国电子技术论坛 - 最好最受欢迎电子论坛! https://bbs.elecfans.com/jishu_945186_1_1.html

BML101模组背面有两个芯片，白天看了下分别是STM8s003F3p6、LMV324I，调试板的USB芯片不做介绍
STM8系列性价比高的16 MHz的8位微控制器STM8S，20pin，16个IO。8 KB闪存，1KRAM，128字节的数据EEPROM，10位ADC，3个定时器，拥有UART，SPI，I2C，低功耗模式下静态电流5uA
图片如下

和同系列比较

同型号还有STM8L003、STM8A003、STM8F003等
官方未提供该模组电路图，但最小系统电路还是有的，我是网上找的如下最小系统电路

LMV324是低电压运放，四路低压轨至轨输出运算放大器，14pin，图片如下

介绍
The LMV321, LMV358, LMV324, and LMV324S devices are single, dual, and quad 低电压(2.7 V to 5.5 V) operational amplifiers with rail-to-rail output swing. These devices are the most cost-effective solutions for applications where low-voltage operation, space saving, and low cost are needed. These amplifiers are designed specifically for low-voltage (2.7 V to 5 V) operation, with performance specifications meeting or exceeding the LM358 and LM324 devices that operate from 5 V to 30 V. With package sizes down to one-half the size of the DBV (SOT-23) package, these devices can be used for a variety of applications.
特性

2.7-V and 5-V Performance
–40°C to 125°C Operation
Low-Power Shutdown Mode (LMV324S)
No Crossover Distortion
Low Supply Current
- LMV321: 130 µA Typ
- LMV358: 210 µA Typ
- LMV324: 410 µA Typ
- LMV324S: 410 µA Typ
Rail-to-Rail Output Swing
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model
- 1000-V Charged-Device Model