rkjohnsonsr@gmail.com
Hi my name is Robert K. Johnson, I am a retired old man with 40+ years experience in Electronics. My education is largely informal but, I haven't stood in an employment line in 40 or more years. Car Electronics, Microwave and both commercial and telco mobile radios and telephone equipment 2 and 4 wire analog as well as digital communications both plant and field (early...) then I quit the real commercial end and started free-lancing. This sent me to the end on my career, I was for the last 20 years a successful electronics engineer designing equipment for the Irrigation Industry.
I used Pic Products first in a line of "Process Controllers" in the Late '90's (they were radio operated devices that controlled a bi-stable latching magnetic valve for commercial irrigation.) When I first started the basic Microchip line only had 50 or so cores and variants C54-55-56-57... NO Flash... At All, If one was REALLY Rich one could buy a '-JW' part... (a 16C57-JW cost about $22- 25.00) and the Eraser cost another $20-25.00... God Bless Flash Parts...
I digress I have 40+ years of Electronics experience in Radio, Audio, Instrumentation, Analog/Mixed and Digital Experience both at the repair and design levels. I can repair most types of test equipment and I rarely used a manual when employed.
I am here because I can't just retire and stay that way, I seem to need an "Electron Fix" at least once a day, I live on my Social Security Pension and buy what I can afford to keep me busy. Currently I am working on a "Home Assistant... for lack of a better description, the usual Baro-, Hygro-, Chrono- and Thermo- meter... With a 'Central' control and display that is a 4X20 line display (for now) 16 Key control input device that will sit on my nightstand.
The Device will include an FM Radio as well as full X10 type remote controls and an RS-232 Comm link for timeserver data from the 'net. I haven't completely decided whether to use IIC or SPI for modular Comm's until I learn enough to use my home network for anything else except spare pairs for more mundane (RS-232@9600 Baud)so most of it is going to be 4 wire duplex RS-485 Comm's for now and every piece except the Main unit will be modular (All except display main proc. and p.s.u. for now the wireless functions will be IR (Cheep Parts, code modules available EZ to implement and CHEEP too). If one is careful one can design and build interchangeable modules as long as the code is arranged/written for devices (Modules) generically instead of specifically. Remember that clever and expensive aren't synonymous, although they can be used in the same sentence.
I only have one issue here, not the obvious though... Although I have a great deal of experience and I do know how to learn... Learning isn't Nearly as easy as it used to be, Yeah your parents are right... Do your Learning NOW instead of later, it does become more difficult. Fortunately there are many 'dialects' of basic but there is a defacto... Standard 'core' type of language. It is necessary here to learn how to learn the 'extensions' unique to the core Pic structure (register use for control and feedback) and then learn the 'extensions' unique to the target chip.... No big deal... Right.
Docedison.
I am Here, New, Curious and more than willing to answer any questions that I can as well as ask any that I might need answers for
Most Everything Especially Electronics
I used Pic Products first in a line of "Process Controllers" in the Late '90's (they were radio operated devices that controlled a bi-stable latching magnetic valve for commercial irrigation.) When I first started the basic Microchip line only had 50 or so cores and variants C54-55-56-57... NO Flash... At All, If one was REALLY Rich one could buy a '-JW' part... (a 16C57-JW cost about $22- 25.00) and the Eraser cost another $20-25.00... God Bless Flash Parts...
I digress I have 40+ years of Electronics experience in Radio, Audio, Instrumentation, Analog/Mixed and Digital Experience both at the repair and design levels. I can repair most types of test equipment and I rarely used a manual when employed.
I am here because I can't just retire and stay that way, I seem to need an "Electron Fix" at least once a day, I live on my Social Security Pension and buy what I can afford to keep me busy. Currently I am working on a "Home Assistant... for lack of a better description, the usual Baro-, Hygro-, Chrono- and Thermo- meter... With a 'Central' control and display that is a 4X20 line display (for now) 16 Key control input device that will sit on my nightstand.
The Device will include an FM Radio as well as full X10 type remote controls and an RS-232 Comm link for timeserver data from the 'net. I haven't completely decided whether to use IIC or SPI for modular Comm's until I learn enough to use my home network for anything else except spare pairs for more mundane (RS-232@9600 Baud)so most of it is going to be 4 wire duplex RS-485 Comm's for now and every piece except the Main unit will be modular (All except display main proc. and p.s.u. for now the wireless functions will be IR (Cheep Parts, code modules available EZ to implement and CHEEP too). If one is careful one can design and build interchangeable modules as long as the code is arranged/written for devices (Modules) generically instead of specifically. Remember that clever and expensive aren't synonymous, although they can be used in the same sentence.
I only have one issue here, not the obvious though... Although I have a great deal of experience and I do know how to learn... Learning isn't Nearly as easy as it used to be, Yeah your parents are right... Do your Learning NOW instead of later, it does become more difficult. Fortunately there are many 'dialects' of basic but there is a defacto... Standard 'core' type of language. It is necessary here to learn how to learn the 'extensions' unique to the core Pic structure (register use for control and feedback) and then learn the 'extensions' unique to the target chip.... No big deal... Right.
Docedison.
I am Here, New, Curious and more than willing to answer any questions that I can as well as ask any that I might need answers for
Most Everything Especially Electronics
- Location
- United States
- Occupation
- Retired Old Coot.
- Spam robot prevention
- picaxe123
Signature
R. K. Johnson Sr.