Blast from the past - High-TechGarage.com
high-techgarage
Posts: 12
Hello folks,
I used to run a website called High-TechGarage.com which catered to the BS2 community. I had tutorials, sample code and a few devices I designed for the stamp. Kids, job, life made it difficult to keep up with the site and I eventually stopped updating it. Forgot about it, really, until a recent move uncovered all the parts I still have!
I have quite a few of the TimeKeeper and MightyMites. The TimeKeeper mounts under the BS2 and has an i2c bus (configurable for either P0/P1 or P8/P9) with pullup resistors. There are 2 EEPROM (either 64k or 128k) and a DS1307 RTC with crystal and CR2032 backup. The MightyMite is a SIP package with a single EEPROM and a DS1307 clock and crystal. The battery backup pin is attached to one of the pins and can be whatever power source you require. I have sample programs for each.
I also have a design I never sold on the site which is based on a DS1615 temp recorder and has a push button to start taking samples, 3-wire bus and a red and green LED for showing the status of the chip. It's a 5 pin SIP and is the size of a CR2032 coin cell holder. I also have sample software for this as well. I only made 10 of these; they were designed to fill up some space on a PCB I had made.
Is there any interest in devices like this? I can post pictures/code if anyone is interested.
I used to run a website called High-TechGarage.com which catered to the BS2 community. I had tutorials, sample code and a few devices I designed for the stamp. Kids, job, life made it difficult to keep up with the site and I eventually stopped updating it. Forgot about it, really, until a recent move uncovered all the parts I still have!
I have quite a few of the TimeKeeper and MightyMites. The TimeKeeper mounts under the BS2 and has an i2c bus (configurable for either P0/P1 or P8/P9) with pullup resistors. There are 2 EEPROM (either 64k or 128k) and a DS1307 RTC with crystal and CR2032 backup. The MightyMite is a SIP package with a single EEPROM and a DS1307 clock and crystal. The battery backup pin is attached to one of the pins and can be whatever power source you require. I have sample programs for each.
I also have a design I never sold on the site which is based on a DS1615 temp recorder and has a push button to start taking samples, 3-wire bus and a red and green LED for showing the status of the chip. It's a 5 pin SIP and is the size of a CR2032 coin cell holder. I also have sample software for this as well. I only made 10 of these; they were designed to fill up some space on a PCB I had made.
Is there any interest in devices like this? I can post pictures/code if anyone is interested.
Comments
As far as a parts list:
(2) 4.7k pullup resistors
(2) 24LC64 or 24LC128 EEPROM (Microchip brand)
(1) DS1307 RTC
(1) CR2032 coin cell holder
The TK "legs" are square posts that work great with bread boards. Alternatively, longer leg sockets can be used so that the TK module can be placed into an existing application and add EEPROM and a RTC.
Front:
Back:
Front:
Back:
The pushbutton starts a data logging mission and the IN OUT Leds signal if the readings are in or out of the specification you program. This chip also has a RTC built in. The device is accessed with a 3-wire interface. Once it's programmed, the CR2032 coin cell powers the circuit. The size of this board was driven by the coin cell holder.
It kills me to think I've had this stuff sitting in boxes when people a hell of a lot more creative than me can be putting it to good use. I'd love to see some examples of these in the real world.
Feel free to hit me up with questions.
Thanks,
Jeff
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Chris Savage
Parallax Tech Support