Hi Everybody,
New to this forum - which by the way is full of very knowledgeable people and great info.
I am not sure if job postings are allowed - I have read through the rules & didn't see anything prohibiting this - but if they are not allowed, forgive me. I also don't see any threads specifically for job postings, so I thought this is the most appropriate section.
Sooo....
I'm looking for a really good and experienced freelance hardware engineer (and also software engineer) for a few projects that I have.
The first project is a 6-channel digital timer (standard 24 hour/7 day timer, with 6 separate channels, each with a mechanical relay output). The brief project specification is below and a more complete specification is attached.
There is also a substantial software component to this project, being the code/logic for the timer.
Here are the specs:
6-CHANNEL PROGRAMMABLE DIGITAL TIMER
OBJECTIVE: Create a 6-channel programmable digital timer where the user can set multiple On/Off programs for each channel, based on a 24-hour day, 7-day week.
The PCB assembly will be housed in a DIN enclosure with a front face measurement of 2.8 wide by 1.75 high. For reference, the enclosure size will be the same as a standard Siemens LOGO PLC.
Features/specifications will include:
- 99 Total available programs (On/Off Schedules)
- Six separate channels
- Microcontroller-based
- Operates on source power of ~90-250VAC, with the objective that the unit can run on the North American power grid at 120VAC (One hot wire, one Neutral wire), or at 240VAC (two hot wires of different phase @ 120VAC each), or on power grids that operate at approximately 220VAC (One hot wire at 220V, one Neutral wire).
- Mechanical relay outputs rated for approximately 8A @ 120V/240VAC. Preferably to use SCHRACK relay, part # V23061-A1007-A302-X113, as it has a proven reliability.
-Non-volatile memory backup (no battery), that will store the timers programs during power failure, or when there is no line voltage applied to the device for an extended period of time.
-A green LED indicator for each channel that, when lit, indicates the ON state for that channel.
-Green backlit LCD display.
-RF Shielding - As this device will be used in locations that may have very high RFI, it should be shielded, so the shielding will be part of the design requirement.
- There will be an interface for programming the timer via computer or smartphone. (Bluetooth or USB). Hardware must be able to interface with a multi-platform application (iPhone, iPad, PC, Mac) for GUI-based programming of the timer. Programs can be uploaded, downloaded, stored, etc. from a device like an iPhone or computer. Also, through this connection method, software updates can be applied to the main logic chip.
-World-class design quality. The circuit design, board layout, and component selection must be the best.
-Ability to specify best-in-class components, while retaining cost-practicality so that production costs are reasonable when sourcing components in bulk.
If you think you have the skills necessary for this project - and if it sounds interesting to you - please contact me. My location is Los Angeles, USA - but I'm used to working with people all over the world, as long as their English is good .
Looking forward to some feedback!!
Thanks,
Jayson
New to this forum - which by the way is full of very knowledgeable people and great info.
I am not sure if job postings are allowed - I have read through the rules & didn't see anything prohibiting this - but if they are not allowed, forgive me. I also don't see any threads specifically for job postings, so I thought this is the most appropriate section.
Sooo....
I'm looking for a really good and experienced freelance hardware engineer (and also software engineer) for a few projects that I have.
The first project is a 6-channel digital timer (standard 24 hour/7 day timer, with 6 separate channels, each with a mechanical relay output). The brief project specification is below and a more complete specification is attached.
There is also a substantial software component to this project, being the code/logic for the timer.
Here are the specs:
6-CHANNEL PROGRAMMABLE DIGITAL TIMER
OBJECTIVE: Create a 6-channel programmable digital timer where the user can set multiple On/Off programs for each channel, based on a 24-hour day, 7-day week.
The PCB assembly will be housed in a DIN enclosure with a front face measurement of 2.8 wide by 1.75 high. For reference, the enclosure size will be the same as a standard Siemens LOGO PLC.
Features/specifications will include:
- 99 Total available programs (On/Off Schedules)
- Six separate channels
- Microcontroller-based
- Operates on source power of ~90-250VAC, with the objective that the unit can run on the North American power grid at 120VAC (One hot wire, one Neutral wire), or at 240VAC (two hot wires of different phase @ 120VAC each), or on power grids that operate at approximately 220VAC (One hot wire at 220V, one Neutral wire).
- Mechanical relay outputs rated for approximately 8A @ 120V/240VAC. Preferably to use SCHRACK relay, part # V23061-A1007-A302-X113, as it has a proven reliability.
-Non-volatile memory backup (no battery), that will store the timers programs during power failure, or when there is no line voltage applied to the device for an extended period of time.
-A green LED indicator for each channel that, when lit, indicates the ON state for that channel.
-Green backlit LCD display.
-RF Shielding - As this device will be used in locations that may have very high RFI, it should be shielded, so the shielding will be part of the design requirement.
- There will be an interface for programming the timer via computer or smartphone. (Bluetooth or USB). Hardware must be able to interface with a multi-platform application (iPhone, iPad, PC, Mac) for GUI-based programming of the timer. Programs can be uploaded, downloaded, stored, etc. from a device like an iPhone or computer. Also, through this connection method, software updates can be applied to the main logic chip.
-World-class design quality. The circuit design, board layout, and component selection must be the best.
-Ability to specify best-in-class components, while retaining cost-practicality so that production costs are reasonable when sourcing components in bulk.
If you think you have the skills necessary for this project - and if it sounds interesting to you - please contact me. My location is Los Angeles, USA - but I'm used to working with people all over the world, as long as their English is good .
Looking forward to some feedback!!
Thanks,
Jayson
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