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Any "Cheap-Duinos" based on the ATMega1280/1281/2561 MCUs?

Hi there. I'm using a Arduino Mega-1280 in a project, and am wanting to "free it up" for other things. I see that there are a number of cheap-duino replacements here and other places (ie;, but I haven't found any that specifically incorporate the ATMega1280/1281/2561. Basically, I'm needing all four of the hardware UARTs this family of MCUs provide, without reverting to interrupt-driven, software-based serial I/O it's predicesors utilize, having the extra memory certainly doesn't hurt either. Thanks in advance for any suggestions, links, etc! Regards, Scott

Question by tennisaddict    |  last reply

cant upload codes from computer to arduino?

I just got my first arduino today, it is the mega 2560, it came pre-loaded  to do this. I wanted to do something else though so i took everything off and made this. After selecting the board and serial port from the tools menu in the programming software and verifying the code i uploaded it, everything seemed to be going okay 'till i got an error message: avrdude: stk500v2_command () : unknown stus 0xc8 avrdude: initialization failed, rc=-1                Double check connections and try again, or use -F to  overide                This check. avrdude: stk500v2_command () : unknown status 0x01 avrdude: stk500v2_disable () : failed to leave programming mode I get that message no matter what code i try to use. i tried uploading it with the board unplugged and got the same message so it seems like it thinks theres a bad connection but the power comes on when it's plugged in. Also, my power light comes on in red, shouldn't it be green?

Question by Jimmy Proton    |  last reply

Home automation & Home door sequrity including one android apk file project available ???

Please help me for this project. how will be arduino program code , which pin are connect to apparatus to apparatus. please give me all description step by step this project implimentation. Project planning:-                   1.Home automation & Home door sequrity including one android apk file.                   2. 4 Relay:   1. Blue led light.                                 2. Red  led light.                                 3. White led light for bath room using PIR sensor.(this light switch on/off only using pir sensor,                                            because-wet hand electric shock on switch or, damged mobile display).                                 4. Fan using voltage regulator.                                  note:- light switch on/off & fan switch & voltage regulataor incease/decrease including appk file.                   3.Home squrity switch board on/off may be   a.display board on wall of house.                                                                b. display in android apk file.                   4.when open door with corect srquirty,then photo upload in memory card.if incorect password then a lout of sound.                   5.when fire in house ,alarm using gas sensor. Room temperature, huminity show in display. Apparatues:            A: Led light on/off by mobile app.                  1.ESP8266 Serial Wi-Fi Wireless Transceiver Module for IOT.                  2.Generic(unbranded )4-channel relay control board module with optocoupler, 4 way relay module for arduino                  3.Arduino Uno R3 ATmega328P ATMEGA16U2 Compatible with USB Cable.                     or,xcluma Atmel Atmega 2560 Mega2560-16Au (16 Mhz) R3 Board+Usb Cable For Arduino.                  4.Led light 3(Blue,Red,White for Bath room),Motor Fan.                  5.REES52 REES_2 Bread Board or Solderless Pieces Circuit Test Board Project Board.                  6.Jumper Wires Male to Male, male to female, female to female.                  7.Generic KG001 HC-SR501 PIR Sensor Pyroelectric Infrared Module 2pcs(for bath room & door open).                  8.Adraxx LM7805 7508 Positive Voltage Regulator IC, 5V 1A.                  9.Resister 1k ohm.                  10.REES52 MQ2 Arduino Compatible Gas Sensor, Methane, Butane, LPG, Smoke Sensor.           B: Home sequrity.                  1.Quantum QHM495LM 25MP Web Camera.                  2.SanDisk Ultra MicroSDHC 32GB UHS-I Class 10 Memory Card With Adapter.                  3.REES52 621033926893 Universial 16 Key Switch Keypad Keyboard Fit for Arduino by REES52.                  4.Silicon Technolabs 20x4 Line LCD Display With Blue backlight HD44780 for ALL Arduino,Rasp Pi,AVR,ARM,8051 (Blue). Software:      1. Arduino-1.8.5.                2. wampserver & notepad++ (for php web page).                3. Android Apk file.      please help me for this project. how will be arduino program code , which pin are connect to apparatus to apparatus. please give me all description step by step this project implimentation.  i will waiting for you.

Question by somnathpanjaproject2018    |  last reply