Design and implement a prototype for Letterbox Postal delivery alarm/monitor
$250-750 USD
Teslim sırasında ödenir
Hi All,
Thanks for your interest in Wireless Electronics.
What I am looking for is something similar to MailChime. You can find more info on MailChime at
http://www.amazon.com/Mail-Chime-Wireless-Alert-System/dp/B00103FDDU/ref=cm_cr_pr_product_top
or
something similar to Thanko Mailbox Sentry Postal Delivery Alarm. You can find mor info at
[url removed, login to view]
What is Mail box Alert Alarm?
Mail box alert alarm is an electronic gadget that will alert the resident at home when there is a letter/post in their mailbox.
Requirements-
1. The sensor needs to be able to detect letter/post in all kinds of mailboxes including vertical, horizontal and sentinel type mailboxes
2. The Sensor needs to be battery power supplied and the battery power usage has to be minimal so that the batteries will last longer
3. The Sensor needs to send a wireless signal via RF, when there is a letter/post in the mailbox
4. The Receiver needs to be compact and be able to receive the wireless signal sent by the transmitter and beep an alarm & make visual indication such as glowing a LED or a counter displaying from 00 and increments for every letter placed in the postbox
5. The receiver needs to have a reset button for the user to reset when they needs to. Say, after picking the mail
6. The receiver needs to be battery supplied so that the user can take anywhere within the house
7. The range of operation needs to be atleast 100ft to 200 ft
8. The transmitter power needs to adhere to Australian ACMA standards. Say, if using 433 Mhz, then the transmitted power needs to be less than 25mW
9. The interference needs to be zero in general. In particular, if there are two devices used by two neighbours next door or letter boxes next to each other say in an apartment building, there has to be zero interference
10. Finally, the design has to be the cheapest to save cost but it has to be high quality product
Please email for any enquiries.
I am expecting this project to be done in 2 weeks time
thanks
Ram Jothi
Proje NO: #4610928
Proje hakkında
Bu iş için 24 freelancer ortalamada $500 teklif veriyor
Dear Sir, I'm 15 year experienced Electronics Engineer whose working area is directly related to your project. I have designed several system which is related to your project. I have high level experience about hard Daha Fazla
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I have done 10dBm 433Mhz(ISM) transmitter with -110dBm sensitivit receiver.. giving rage of 150meter lin eof site & ~80meter across 2-3 walls... I can easily do this,quickly. I have done simillar long range design a Daha Fazla
I'm Applied Electronics and Embedded systems engineer. I have already worked on similar projects and I can supply you with the bill of material, schematics design, PCB design and working device (proof of concept) if re Daha Fazla
