The remote control operates from 4 "AAA" batteries and uses a Texas Instruments MSP430F413 16-bit microcontroller driving a custom LCD display and 418 Mhz Amplitude-modulated (AM) data link. The receiver operates on 115 VAC and uses a Microchip PIC 16C621A 8-bit microcontroller driving a 100W at 6 distinct speeds and 400 watts of dual independently controlled lights.

    First we do the product concepts, often with artist's conceptions here in California:

From this product definition, we proceeded to design the circuit in California:

In parallel, we were designing the tooling in China:

Then we wrote the software (in assembly):

; ===============================================================
; MAIN PROGRAM LOOP HERE. Code above this line only executes on
; POWER UP CLEAR. Below is repetitive loop
;=================================================================
MAIN         nop
                 bit.b #FL250,flag2                 ;250ms tick?
                 jc MAIN1
MAIN2      mov.b #00000111B,p2key         ;all rows first
                call #out_row                     ;update
                call #getkey                     ;read keys
                jz MAIN3                         ;no, loop until key done
; Got a key, then debounce it
                mov.b #1,p2key             ;first row
                scan call #out_row         ;output it
                call #delay                 ;wait a short bit
                call #getkey                 ;see if a down
                jnz gotkey                     ;any down?
; No, then try next row
                rlc.b p2key                     ;try next row
                bit.b #00001000b,p2key         ;test for rollover
                jc no_good                         ;done, nokeys
                jmp scan                             ;try next row;
MAIN1     bic.b #FL250,flag2         ;reset tick
               call #RotBlade                         ;run blades
               jmp MAIN2
;MAIN3     bit.b #KTF,flag2             ;do we have key timer?
                jc MAIN ;YES
;+++++++++++++++++++++++++++++++++++++++++++++++++++
; No, then switch to LPM here
;++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;7/2/01 added lines to enable keyinterrupts, disable Timer!
                bic.b #BTIE,&IE2                         ;DISable Timer Interrupt
                bis.b #01110000b,&P0IE             ;<--enble Interrupts
                ; bic.b #LEDS,&P0OUT                 ;Insure LEDS OFF
                mov.b #00000111b,&P0OUT         ;insure LED OFF, Scan ON

  While the above was proceeding, we designed a custom LCD and Printed Circuit Board and fabricated some samples in China:

 And the tooling of the plastic case and rubber keypad were proceeding in China:

Finally, with a finished product, we performed the FCC Part 15 certification testing at Compatible Electronics in California:

Some other Example Turnkey Products: