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Dear AliPrice member,
AliPrice team will be on vacation from May 1, 2024 to May 5, 2024, a total of 5 days. And we will officially resume work on May 6 to process your orders and parcel logistics at the first time.
Therefore, we recommend placing orders in advance to ensure timely purchase and shipment before the holiday. We apologize for any inconvenience this may cause.
During the holiday, you can still visit the AliPrice Agent website and submit orders as usual, and we will process your order and package logistics as soon as possible after the holiday.
Thank you for your support to AliPrice Agent!
AliPrice Team
2024-4-28
Install the Browser Extension and click the Buy-for-me button to jump to the AliPrice Agent website to place an order.
Copy product link and search it.
Select product's color and quantity.
Upload product info.
Pay for the products and shipping fee in China.
AliPrice Agent will buy for you after receiving the order.
Quality inspection and stored in the warehouse.
Visit 'My Products' and then click 'Submit Package'.
Pay for intl shipping fee and service fee.
Consolidate and pack products, reinforce package, weight and send out for delivery.
Once you have received the parcel, you can confirm the delivery via 'My Agent Package'. If you have any question regarding to the parcel, you can also choose the relevant parcel and add note for After-sales Service.
模块亮点:
1.LCD液晶显示频率和占空比,非常清晰, PWM输出可以分别设置频率和占空比;
2.频率范围宽,精度高;
3.可串口通信
一、模块说明
PWM输出,可以分别设置频率、占空比;
频率分为四个范围,自动切换:
1. XXX(无小数点):最小单位是1Hz,取值范围1Hz~999Hz;
2. X.XX(小数点在百位)最小单位是0.01Khz,取值范围1.00Khz~9.99Khz;
3. XX.X(小数点在十位):最小单位是0.1Khz;取值范围10.0KHz~99.9KHz
4. X.X.X (小数点在十位和百位):最小单位是1Khz;取值范围1KHz~150KHz
e.g. 频率显示:100 表示PWM输出100Hz的脉冲;
1.01 表示PWM输出1.01K的脉冲;
54.1 表示PWM输出54.1KHz的脉冲;
1.2.4表示PWM输出124KHz的脉冲;
占空比取值范围:0~100%;
所有设置参数,掉电保存。
二、参数设置
模块有4个独立按键,用来设置频率和占空比,支持短按(增加或减小一个单位)和长按(快速增加或减小),非常简单,设置完参数自动保存,掉电不丢失。
三、模块参数:
1.工作电压:3.3~30V;
2.频率范围:1Hz~150KHz;
3.频率精度:在每个范围上的精度是2%左右;
4.信号负载能力:输出电流可在5~30ma左右;
5.输出幅度:PWM幅值与供电电压相等;
6.环境温度:-20~+70℃。
四、适用范围:
1.用作方波信号发生器,产生方波信号供实验开发使用;
2.用来产生控制电机驱动器的方波信号;
3.产生可调脉冲,供MCU使用;
4.产生可调脉冲,控制相关电路(PWM调光调速等应用)。
串口控制(单片机TTL电平通信)
通讯标准:9600 bps数据位 :8
停止位 :1
校验位 :none
流控制 :none
1、 设置PWM的频率
“F101”:设置频率为101 HZ (001~999)
“F1.05”:设置频率为1.05 KHZ (1.00~9.99)
“F10.5”:设置频率为10.5KHZ (10.0~99.9)
“F1.0.5”:设置频率为105KHZ (1.0.0~1.5.0)
2、 设置PWM的占空比
“DXXX”:设置PWM的占空比为XXX;(001~100)
例如D050,设置PWM占空比是50%
3、 读取设置参数
发送“read”字符串,读取设置的参数。
设置成功返回:DOWN;
设置失败返回:FALL。