Looks great! Out of curiosity, why go with the hub/node approach using ZigBee for sending such a small amount of data? There are WiFi modules like TI's CC3000 ( http://www.ti.com/product/cc3000 ) available for very low cost that would make separate hub hardware unnecessary. This is the product used in Spark Core ( https://www.spark.io/ ), for example. I imagine there are a few different reasons why you might spring f…
We use a wifi module in a battery operated environment (we kill power to the module when it isn't in use). It uses about 225mA @ 3.2V. The connection/handshaking take about 5-7 seconds to talk to a local server, plus the time for whatever data you are sending. When talking to an internet based server, the connection time can extend out to 20+ seconds. So you can see wifi isn't the greatest choice for low power/batter…
Show HN: I built this notifying device – electronics, code, design, marketing
21–30 of 58 posts
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#22This is cool marketing but it is way expensive than I expected. I am not sure pricing is DIY-friendly but you would certainly find people to buy that.
I use a technology called ZigBee. It's a wireless protocol made for Internet of Things devices. This part represent about 60% of the production cost. This chip is expensive but gives years of battery life. Curious about what price did you expected?
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#23Earlier quoted context omitted.
I use a technology called ZigBee. It's a wireless protocol made for Internet of Things devices. This part represent about 60% of the production cost. This chip is expensive but gives years of battery life. Curious about what price did you expected?
I expected this to work through either wifi or a very cheap USB dongle. The price point for a base station with one device should be 49.99 and each additional device should retail for 14.99. That's my honest opinion.
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#24Your video did a great job at presenting the product and explaining what it's good for.
Good luck with your crowdfunding.
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#25Re: Show HN: I built this notifying device – electronics, code, design, marketing
#26Looks very nice. When I went to the page, I wondered, "notifying about what?" Your video did a great job at presenting the product and explaining what it's good for. Good luck with your crowdfunding.
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#27Interesting. Seems similar—complete with slightly creepy base station—to Sen.se: https://sen.se/store/cookie/#mother (Though it appears Karotz is a separate thing: http://store.karotz.com/en_US/ ) There's also Electric Imp, but it's a bit more of a platform/DIY: https://electricimp.com/
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#28Re: Show HN: I built this notifying device – electronics, code, design, marketing
#29You've got precious little runway left on that campaign, which launched in early March. What other promotion have you been doing to get people to buy in to Notifon?
Re: Show HN: I built this notifying device – electronics, code, design, marketing
#30Wow, Amazed someone used ZigBee instead of Bluetooth Low Energy. There's just so many more BLE chips out there and Android and iOS phones are even compatible nowadays.