Find Jobs
Hire Freelancers

Telephone Line On-hook voltage to power supply a PCB and Telephone and work with Goertzel DTMF detect in esp32 and arduino

$10-30 USD

已关闭
已发布超过 5 年前

$10-30 USD

货到付款
Hi, I need a Freelance Electronic Engineer to solve this issue:[login to view URL] llook mainly at the [login to view URL] and [login to view URL] (phone access and delete and to this (videos) [login to view URL]
项目 ID: 18151301

关于此项目

2提案
远程项目
活跃5 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
2威客以平均价$156 USD来参与此工作竞价
用户头像
Hello Dear You want an electronic circuit that inject 48 volt over line, we can discuss this project I have good experience with electronic and harware design best regards Aymen
$277 USD 在7天之内
0.0 (0条评论)
0.0
0.0
用户头像
Man i can solve your problem .i am electronics engineer and i can deliver it within three days with 100%accuracy.
$35 USD 在3天之内
0.0 (0条评论)
0.0
0.0

关于客户

BRAZIL的国旗
santos, Brazil
5.0
2
付款方式已验证
会员自12月 14, 2009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。