Arduino Mega: Difference between revisions
(Created page with "=Power Draw= *About 1/2W with no peripherals - [https://arduino.stackexchange.com/questions/35619/how-much-current-does-an-arduino-mega-draw-from-a-lipo-battery-5-000-mah/46323]") |
|||
| (9 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
=Source= | |||
PCBway has an Arduino Mega file online in Eagle - [https://www.pcbway.com/project/shareproject/Arduino_Mega_2560_Rev3e.html]. [[Eagle to KiCad Conversion]] appears to be doable. An order of 100 boards appears to be $83 - so under a dollar per board. | |||
=Cost= | |||
At $10 or $11 - the Mega chip is expensive, reportedly 50% more than the comparable pic24f. Why? Good old capitalism. [https://www.reddit.com/r/arduino/comments/2rv12p/question_why_is_the_atmega2560_so_expensive/] | |||
At such cost, the case for DIY production of Mega boards is minimal. However, if the chip can be reused and recycled, there is a strong case for Design-for-Disassembly. With such a chip, however, the reuse part is difficult. | |||
=Conclusion= | |||
There is a case for open source design so that the cost of an Atmega2560 equivalent drops down. Note that GHz processors are $40 - [https://www.amazon.com/CPU-Processors-25-50-Internal-Components/s?rh=n%3A229189%2Cp_36%3A1253504011]. There is no reason for a MHz processor like the Atmega2560 to be about 50x more expensive for the computing power they provide. | |||
=Power Draw= | =Power Draw= | ||
*About 1/2W with no peripherals - [https://arduino.stackexchange.com/questions/35619/how-much-current-does-an-arduino-mega-draw-from-a-lipo-battery-5-000-mah/46323] | *About 1/2W with no peripherals - [https://arduino.stackexchange.com/questions/35619/how-much-current-does-an-arduino-mega-draw-from-a-lipo-battery-5-000-mah/46323] | ||
Latest revision as of 01:41, 1 September 2020
Source
PCBway has an Arduino Mega file online in Eagle - [1]. Eagle to KiCad Conversion appears to be doable. An order of 100 boards appears to be $83 - so under a dollar per board.
Cost
At $10 or $11 - the Mega chip is expensive, reportedly 50% more than the comparable pic24f. Why? Good old capitalism. [2]
At such cost, the case for DIY production of Mega boards is minimal. However, if the chip can be reused and recycled, there is a strong case for Design-for-Disassembly. With such a chip, however, the reuse part is difficult.
Conclusion
There is a case for open source design so that the cost of an Atmega2560 equivalent drops down. Note that GHz processors are $40 - [3]. There is no reason for a MHz processor like the Atmega2560 to be about 50x more expensive for the computing power they provide.
Power Draw
- About 1/2W with no peripherals - [4]