Find Jobs
Hire Freelancers

Battery Powered Pulse Counter

$300-1000 USD

进行中
已发布超过 11 年前

$300-1000 USD

货到付款
Develop code for Pic XLP microcontroller that can count pulses (max 50hz, 50% duty cycle). Must provide some kind of software debouncing. Utilise energy saving techniques to keep micro in low power mode. inputs: 3 digital inputs; one for pulse counting and two alarm inputs. If one of the two alarm inputs go high send alert data packet to Alert Recipients mobile no Update Report Packet: Every xx hours send current register data along with status of the two digital inputs along with the battery ADC value 0-9 in a compressed packet format, you decide. Store the following totalized register pulse count data: hourly pulse count, last 24 hours daily pulse count, last 14 days weekly pulse count, last 8 weeks monthly pulse count, last 12 months. Develop protocol to: Read / Write the RTCC clock Change the freq at which Update Report packet below is sent to recipients mobile as SMS packet. Read / Write SMS message Centre Read / Write SMS recipients mobile no Read / Write SMS Alert recipients mobile no Read / Write the status of alert digital inputs Read / Write (clear) Register data for: hourly, daily, weekly and monthly All packets must have a CRC calculation. All Command / responses must be made via UART, IRDA or SMS. IDE / Language of choice is MPLAB C or MikroC
项目 ID: 2629754

关于此项目

19提案
远程项目
活跃11 年前

想赚点钱吗?

在Freelancer上竞价的好处

设定您的预算和时间范围
为您的工作获得报酬
简要概述您的提案
免费注册和竞标工作
19威客以平均价$842 USD来参与此工作竞价
用户头像
hi, i can help.
$1,800 USD 在30天之内
4.8 (75条评论)
7.8
7.8
用户头像
I can help you!
$800 USD 在25天之内
5.0 (41条评论)
6.4
6.4
用户头像
Read Pm sir :)
$600 USD 在10天之内
4.9 (43条评论)
6.7
6.7
用户头像
hello i can do that thanks
$700 USD 在30天之内
4.7 (35条评论)
6.5
6.5
用户头像
Hi I am interested in the job. Please check PM. Thanks.
$1,000 USD 在30天之内
5.0 (8条评论)
5.8
5.8
用户头像
Professional automation engineer can take care.
$999 USD 在60天之内
4.4 (57条评论)
5.9
5.9
用户头像
Experienced in 7years in this field.
$500 USD 在6天之内
3.8 (1条评论)
1.2
1.2
用户头像
HI, I work normally with PIC technology and GSM/GPRS systems. No problem to do what you need. let me know if you want additional info maurizio stefani
$700 USD 在20天之内
0.0 (0条评论)
0.0
0.0
用户头像
Hello, I can do it with low power consumption and GPRS module. Check my PM. Regards
$1,500 USD 在60天之内
0.0 (0条评论)
3.6
3.6
用户头像
Hi, I would like to do the project for you. Please see PM for more information. Regards, Cedesyn
$400 USD 在14天之内
0.0 (0条评论)
0.0
0.0
用户头像
Dear Sir, just a few questions... 1) Why XLP pic since you have to supply power to your comm's gateway... 2) Will you need a voltage translation for connecting your 3 inputs to the pic? 3) What battery source are you planning to use? 4) Do you need a specific package for your pic? 5) I will be using flowcode for your project. If that is a problem for you please ignore my bid. 6) I have done various interfacing projects with sensors. I believe i can complete your project and keep you fully satisfied. 7) In case you need small changes to your project in near future you won't be charged again.
$700 USD 在15天之内
0.0 (0条评论)
0.0
0.0
用户头像
Hello! I developed similar project some time ago. Please, read private message for more details.
$700 USD 在30天之内
0.0 (0条评论)
0.0
0.0
用户头像
plz see pmb.
$500 USD 在10天之内
3.6 (1条评论)
0.0
0.0
用户头像
we are electronics design house and can handle this requirement Siva
$1,000 USD 在60天之内
0.0 (0条评论)
0.0
0.0
用户头像
I can do the project.
$500 USD 在20天之内
0.0 (0条评论)
0.0
0.0
用户头像
I can do it.
$500 USD 在10天之内
0.0 (0条评论)
0.0
0.0
用户头像
Dear Sir, I have been developing firmware for Direct Digital Controllers for the past 7 years and I already have tested code modules for pulse accumulators (with software de-bouncing) and communication modules for GSM/GPRS modems. I can build a prototype for your system using PIC XLP 16-bit Development Board. Please check my PM also Best Regards, microsys88
$800 USD 在14天之内
0.0 (0条评论)
0.0
0.0
用户头像
Hi sir, I have experience in almost all the PIC controllers. I did doding on all protocols. It wud be glad if i get this prjct
$800 USD 在7天之内
0.0 (0条评论)
0.0
0.0
用户头像
i am experienced in this field, i beleive i could easly finish your project on time.
$1,500 USD 在30天之内
0.0 (0条评论)
0.0
0.0

关于客户

IRELAND的国旗
., Ireland
4.9
21
付款方式已验证
会员自12月 16, 2011起

客户认证

谢谢!我们已通过电子邮件向您发送了索取免费积分的链接。
发送电子邮件时出现问题。请再试一次。
已注册用户 发布工作总数
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
加载预览
授予地理位置权限。
您的登录会话已过期而且您已经登出,请再次登录。