U4 is a 4001 device, and is part of the classic 4000 series of CMOS logic. Many companies make this device and as such the device ends up having all sorts of names. eg. CD4001, MC14001, 4001BE. All types should work but try to avoid the 4001UBE, this is an older device and is very prone to static damage. Either way a good quality IC socket is recommended for this chip. You’ll need a 14-pin type.

The LEDs are standard 5mm round types. You can chose either flat topped or domed top. Flat tops tend to look better, although the viewing angle is not normally as good. The LED labelled OUT is a bicolour LED. I like red/green ones the best, although other colours are available. Try to get the three single colour LEDs from the same range of LEDs, that is, the same manufacturer and type. You can choose from different colours in the same range. The three single colour LEDs are driven from the same current source, and by choosing the from the same range you should get the same brightness from each one. I have used red, orange, and green, for no particular reason other than to look like a traffic light!!

There are five switches on this board. The GATE and RESET switches are push switches. These are sometimes designated SPNO (single pole, normally open). Farnell part number: 146-244. You can use momentary toggle types if you prefer. The other three switches are normal SPDT toggle types. Get good quality ones. Apem and C&K make good ones. Farnell part number: 147-772. There will be more detail on how to wire the switches to the board later on in this document.

Parts List

The components are grouped into values, the order of the component names is of no particular consequence. Please read the above section for more details about the parts used in this module.

A quick note on European part descriptions. R is shorthand for ohm. K is shorthand for kilo- ohm. For capacitors: 1uF = 1000nF. To prevent loss of the small ‘.’as the decimal point, a convention of inserting the unit in its place is used. eg. 4R7 is a 4.7 ohm, 4K7 is a 4700 ohm resistor, 4n7 is a 4.7 nF capacitor.

Resistors

 

Resistors 1/4W, 5% or better.

 

100K

R21, R24, R19, R33, R32, R23, R38, R43, R34, R22,

 

R31, R14, R8, R15, R16

100R

R4, R7

10K

R28, R25, R3, R9

10R

R29, R30

120K

R13

18K

R17

1K

R18, R6

1M

R35, R46, R10

22R

R40

9

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Oakley MOTM-820, OMS-820 manual Parts List, Resistors
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MOTM-820, OMS-820 specifications

The Oakley OMS-820 and MOTM-820 stand out as exemplary models in Oakley's extensive range of performance eyewear, designed for both sports enthusiasts and everyday users. These models capture the essence of Oakley's commitment to innovation, superior optical technology, and stylish design.

One of the main features of the OMS-820 is its advanced lens technology. Utilizing Oakley’s High Definition Optics (HDO), the lenses provide exceptional clarity and optical fidelity. This technology minimizes distortion, ensuring that users have an unobstructed view, whether they are on the golf course, cycling, or participating in other outdoor activities. The lenses also come with Oakley's PRIZM technology, which enhances color contrast and visibility in various environments, allowing users to detect changes in terrain or obstacles more readily.

The MOTM-820, on the other hand, emphasizes adaptability and comfort. It features a lightweight frame crafted from Oakley’s proprietary O Matter material, which provides flexibility and resilience. This ergonomic design conforms to the shape of the wearer's face, ensuring a secure yet comfortable fit during extended use. The adjustable nose pads and temples further enhance comfort, making it ideal for an active lifestyle.

Both models incorporate Oakley’s innovative lens treatment technology, which includes anti-fog and anti-scratch advancements. This ensures that the eyewear remains clear in challenging conditions, whether users are facing misty weather or rugged terrains. Additionally, the UV protection offered by these lenses shields wearers from harmful rays, a critical feature for outdoor activities.

A striking characteristic of the Oakley OMS-820 and MOTM-820 is their customizable aesthetics. Available in a myriad of colors and styles, users can express their individuality while enjoying high-performance eyewear. This attention to style combined with functionality makes these models popular choices among both athletes and casual wearers alike.

In summary, the Oakley OMS-820 and MOTM-820 are distinguished models that integrate cutting-edge technology with comfort and style. Whether for competitive sports or daily wear, these eyewear options exemplify Oakley’s commitment to enhancing visual performance and user satisfaction.
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