Fixed Price: Not Sure
| Posted: 20 minutes ago | Ends: 14d, 23h |
The product design will require two PCB's to be designed which will go into two separate modules and communicate via bluetooth. The modules will be NEMA 6P and 7D compliant. The control software will need to be written for both PCB's (preference is C/C++). PCB1 will need to send / receive information with a mobile device application via wireless communication with a network router. PCB1 will need to send commands / receive commands via bluetooth to PCB2. PCB2 will need to send responses / receive commands via bluetooth to PCB1. The first PCB (PCB1) hardware design will require the use of the following components: -- Microcontroller (Atmel AVR) -- Wireless module (XBee module or approved designer's choice) -- Bluetooth module (approved designer's choice) -- Pressure transducer (analog, to be determined) -- Capacitive sensing circuit for touch (discrete circuit or IC) -- Indicating LEDs for unit activity -- Backup battery* * Backup battery should be able to power PCB 1 for a ...
Hourly Rate: Not Sure
| Duration: Not Sure
| Posted: 5h, 7m ago | Ends: 14d, 18h |
I need a simple circuit diagram built asap. It is for a small device that would have bluetooth and potentially wifi. It will also need some sort of rechargable battery with dc power. I will provide the info once an NDA is signed. Thanks
Hourly Rate: Not Sure
| Duration: 4-6 months
| Posted: 6h, 15m ago | Ends: 28d, 17h |
I am looking for a few relay protection engineers to assist with the calculations/settings for a utility in the U.S. Must be familair with: Aspen and or CAPE settings of line relays up to 345KV transmission lines Microprocessor Relays (SEL, ABB, GE) Preferences: experience with NERC requirements To be considered you must be a U.S. citizen
Preferred Location: United States
Fixed Price: $500 - $1,000
| Posted: 7h, 49m ago | Ends: 14d, 16h |
We are currently in the process of designing and implementing a Salsa20_8 hardware attack. The project has reached the point where we need a skilled Verilog/VHDL developer to assist in optimizing and reducing the footprint of the core.
Fixed Price: $1,000 - $5,000
| Posted: 12h, 39m ago | Ends: 14d, 11h |
Research Project for Electronic Engineer This product has various names in the internet and various brands too.. Im not concerned with the brand, just learning the technology in general.. 1. Apartment directory call box 2. Multi-Family Door Entry 3. Telephone entry systems Research Project Request: This older technology unlocks the front door to many buildings etc.. From what little I understand, it sends a Phone "Tone" single to the electronic door lock mechanism that then unlocks the door when the person that is being buzzed "Called" on their phone is rang. When that person hits the correct button to unlock the door (Any button can be programmed to unlock) as long as its programmed into the box unit. Again, when the correct tone is recognized the door unlocks. My Goal To have enough research so that I can understand how technology works and furthermore, use a cell phone to send the (same tone) correct single without the old brain box. Perhaps make and mobile ph...
Fixed Price: Not Sure
| Posted: 21h, 44m ago | Ends: 29d, 2h |
Redesign a simple smartphone sensor accessory that will be powered by the smartphone and controlled by a smartphone app (which also needs to be designed). The PCB's main functions are to convert analog signals from a 3 pin 3V sensor to digital and relay them to the smartphone app; and convert/run 9V back from the phone to power the sensor. The sensor is 11/32 x 11/32 x 1/8" and solder mounted. I have a completed design, but I need it to be oriented 90 degrees so that the long side buts up against the smartphone for stability. The scope of this work will also include: 1. A review and analysis of the work already performed. 2. A redesign in order to re-orient the device 90 degrees, considering all components must be readily available from three or more electronics distributors from this list: a. Digikey b. Mouser c. Allied d. Newark e. Avnet e. TTI 3. A feasibility study regarding adding an off-the-shelf radon and/or gas detector while maintaining the form and size. 4. D...