Design & implement a prototype of RF based Wireless Mail box Alert Alarm & Indicator

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

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.


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.

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, 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


Ram Jothi

Taidot: elektroniikka, Sulautetut ohjelmistot, Mikrocontroller, Piirilevyn asettelu, Langaton

Näytä lisää: based electronic wireless letter box project, based electronic wireless letter box, wireless letter box mail indicator, implement electronic letter box, prototype box, what is prototype design, what is dp, what is a dp, system sensor, prototype of product, prototype a product, prototype alert, product design standards, product design house, product box design for amazon, power electronic design, post your product design, make prototype product, make prototype, make a prototype of a product, make a prototype, letter of thanks, i dp, dp 5, design your house

Tietoa työnantajasta:
( 0 arvostelua ) Australia

Projektin tunnus: #4261286

9 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön


hi, i am an electrical engineer and an embedded system developer. i have alot of experiecne with the wireless system based on RF. i can provide you the design as well as a working prototype of the system as per your pr Lisää

$1000 USD 14 päivässä
(24 arvostelua)

Hi We are a team of dedicated and professional workers including computer, electrical and network engineers,developers,designers, talented and professional writers. We can offer detailed and professional design bas Lisää

$250 USD 20 päivässä
(10 arvostelua)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Lisää

$220 USD 4 päivässä
(10 arvostelua)

Hi rammjothi, Kindly have a look at your PMB for my bid detail. Regards IjlalB

$250 USD 14 päivässä
(3 arvostelua)

Hello, My name is Randy Boulter, and I am a digital and analog design engineer with over 25 years experience. I have analog experience with a major defense contractor and digital experience with a major building au Lisää

$200 USD 14 päivässä
(4 arvostelua)

I have been working with short range RF. Your project is nothing new to me. Please consider my bid if you want a successful project. Thanks.

$1200 USD 14 päivässä
(0 arvostelua)

daer employer, please see the pm.

$500 USD 15 päivässä
(0 arvostelua)

ia ma ready for the job

$100 USD 3 päivässä
(0 arvostelua)

I can do it.

$100 USD 7 päivässä
(0 arvostelua)

Dear, I have experience in lowpower wireless devices. In my profile you can find such device. Best regards.

$700 USD 14 päivässä
(0 arvostelua)