Wanted to make an alarm clock and ordered a DS1307+. Only came with the small black chip itself. Do I need to order batteries and a board/module or whatever with it? Then just attach the chip onto it?
So confused as to what's happening here.
I doubt you will be able to buy a bare board, and it depends on which package you have. Is it a smd chip or a dip package. IOW, can you plug it into a breadboard?
You will need the 32.768KHz crystal, battery, battery holder, a couple of headers for power, I2C and pulse output (if desired), pullup resistors and a piece of perfboard to solder everything to. Really, I would not use the old DS1307. Just order a DS3231 module that is ready to go and much more accurate.
tinman13kup:
I doubt you will be able to buy a bare board, and it depends on which package you have. Is it a smd chip or a dip package. IOW, can you plug it into a breadboard?
Here's the link to it: https://www.digikey.ca/product-detail/en/DS1307%2B/DS1307%2B-ND/956883?utm_campaign=buynow&WT.z_cid=ref_octopart_dkc_buynow&utm_medium=aggregator&curr=cad&site=us&utm_source=octopart
and not really, it doesn't fit naturally into the breadboard.
Guessing I have to buy another one?
Depends. That is a breadboard friendly chip (DIP), and you need only a crystal to make it work. The downside is if you want to make it portable, then a battery holder and a bit of soldering is needed.
You could try to get this one working with power from the arduino if you are willing to buy the crystal, or just get a module from Adafruit or Sparkfun. Ebay has a bunch of that stuff too at cheap prices
Sounds like you need to learn the difference between a discrete IC (or "part") and a Board [or Module] that features the IC on a PCB [Printed Circuit Board], either for easier use, or in an actual working circuit, or something in between.
The DS1307+ is an IC [or "Integrated Circuit"], i.e. that "little black chip". The functionality it provides is called a "Real Time Clock" And in this case, it's both a clock and a calendar and is, basically, designed to keep time [or "Real Time", to distinguish it from a device that provides the "timing" [or "clock"] for things like a Multicontroller Unit [MCU], a computer, etc. BUT, all the DS1307+ provides is the time information. It doesn't provide what can be called the "Human Interface" -- in other words, a way for a human to read the time or see what the date is, by just looking at it, like you would a clock on the wall, or on a desktop, etc. And, in fact, in some applications there is no human interface. The role of the Realtime chip can be to provide real time to an MCU, or a Computer, or other device that needs to know what time it is and what the current date is. In fact, your PC or Laptop probably uses one of these to keep track of the time [typically, updated, periodically by some sort of time authority, like an external NTP server]. This is what you got.
It sounds like what you wanted was one of the following:
- A module that uses the DS1307+ to provide some sort of easy access to the time/date features, as well as a way to set the time and date. Common types of modules are Arduino Ready Boards, Evaluation Boards, or Reference Design Boards. Another possibility is a kit. A Kit is usually a PCB with all the parts needed to build a working, hopefully useable device, and sometimes even includes an enclosure.
- A "Breakout Board" that provides easy access to the pins on the IC. But, the one you have is probably an 8-Pin DIP package, which is already easy to use. Breakout boards are usually for IC's that only come in an "SMD" package -- i.e. one of those hard to solder surface mount packages.
So, you could Google for the datasheet and roll your own, or find and buy a Module that provides the functionality you seek.
...and not really, it doesn't fit naturally into the breadboard.
Really? Then it sounds like it may be an SMD part. OR, you don't know that you have to bend the pin inward a bit to get it to push into the breadboard.
It will look like this, when you get it plugged in (assuming it is a DIP package:
...and not really, it doesn't fit naturally into the breadboard.
Really? Then it sounds like it may be an SMD part. OR, you don't know that you have to bend the pins inward a bit to get it to push into the breadboard -- or use an IC insertion tool. IC are shipped with their pins bent out at a 75° angle, so insertion machines only have to bend them inward [to 90°] and not in or out to get them lined up.
It will look like this, when you get it plugged in (assuming it is a DIP package):
ReverseEMF:
Really? Then it sounds like it may be an SMD part. OR, you don't know that you have to bend the pin inward a bit to get it to push into the breadboard.It will look like this, when you get it plugged in (assuming it is a DIP package:
Yea sorry, I meant that I would have to bend the pins inwards a bit to make it fit.
So from all this information, I would only need a crystal, battery holder, and a battery to get started?
BTW, thank you for all the help.
You can use the DS 1307 without the battery. It will not keep time when without power to Vcc, though.
If a backup supply is not required, VBAT must be grounded.
groundFungus:
You can use the DS 1307 without the battery. It will not keep time when without power to Vcc without the battery.
Great news, appreciate all the help.
See my edit of reply #9.