Sharing one projector between classrooms: how to make it work

Can one portable projector serve several classrooms?

Yes: one portable projector can be shared between classrooms, and what decides whether it works is setup time per room rather than the projector. A unit that is carried in, stood at a marked spot, plugged in and focused takes, in our experience, about two minutes (an estimate, not a timed measurement) once each classroom has been measured once. One that has to be re-aimed and re-guessed every period is the one we would expect to fall out of use within a few weeks. The test of whether the share is working is the booking list, and section 07 (When does one shared projector stop being enough?) gives it.

The published figures make the carrying part easy. Neon+ publishes the V6 at 786 g, at 220 × 127 × 46 mm, with a tripod, power adapter, power cord and HDMI cable in the box. That is a unit a teacher can carry in one hand with its cable bag in the other, which is the practical test for a shared machine in a Malaysian school or tuition centre.

Planning a shared unit for a few rooms? WhatsApp Neon+ on +60 12-565 2091 with the number of rooms, or read the published figures on the Neon+ V6 page.

One published figure shapes the whole routine, though: the Neon+ V6 has no built-in battery and runs from a 19V/3.42A adapter. Every room it visits needs a working socket within reach of the position it is used from. On our reading that is the first thing to check in a sharing plan, before any timetable is written, because it is the one thing a rota cannot work around.

What should stay in each classroom, and what travels with the projector?

Everything that can be duplicated cheaply stays in the classroom: an HDMI cable, a power extension, a stand or a marked spot and the room card. Only the projector, its remote and its adapter travel, along with whatever device the teacher is presenting from. In our experience the reason a shared projector runs late is rarely the projector. It is a missing cable, a socket behind a cupboard, or a teacher hunting for an adapter that the previous class took with them.

The Neon+ V6's box contents are published as the projector, remote control, power adapter, tripod, power cord, HDMI cable and an instruction card. One tripod and one HDMI cable ship with the unit, so every classroom after the first needs either its own stand or a marked spot on a table, and its own cable. Those are the cheapest items in the whole plan and the ones that save the most minutes.

What three numbers should be on each classroom's card?

Three numbers: the distance from the front wall to the projector position, the distance to the farthest seat students actually use, and the usable wall width. Measure each classroom once, write those three on a card, and tape the card to the wall by the socket. After that nobody has to work anything out in front of a class, and a teacher who has never used that room can set up as fast as the one who booked it last week. Planning a room from scratch is a different job: our guide to setting up a classroom projector (on neonplus.com.my) covers it.

1. 01

   The distance from the front wall to the projector position

   With a 1.2:1 throw ratio, the published ratio for the Neon+ V6, the image width is roughly that distance divided by 1.2. Neon+ publishes the same geometry the way people shop for it: a 39 inch diagonal at 1 metre, which works out at about 0.83 m of width. Width is the number to check against the wall; the diagonal is the number on the box.

2. 02

   The distance to the farthest seat students actually use

   This is the number that says whether the image is big enough. Epson's guidance is to “determine the appropriate screen height by dividing the viewing distance by 4, 6, or 8”, for analytical, basic and passive viewing: six for “standard presentations and meetings”, four for detail-oriented work. The rule gives a height and item 1 (the projector distance) gives a width, so bridge them with the Neon+ V6's published 1280 × 800 native resolution: a 16:10 image is about 0.625 times as tall as it is wide. Our guide to image size for the back row works the arithmetic through.

3. 03

   The usable wall width

   The clear space between whiteboard, notice boards and windows, which is what actually limits the image in most rooms.

Three numbers, one card per room, and a shared projector behaves like a fitted one. The teacher walks in, stands it at the marked distance, plugs it in and starts. There is nothing to calculate and nothing to argue about, which is the point.

How do different teachers connect their own laptops?

Leave a cable in every classroom and the connection question mostly disappears: the teacher brings the laptop, the room provides the cable, and nothing has to be unplugged from the projector between lessons. The published Neon+ V6 connectivity is HDMI 2.0, USB 2.0, Wi-Fi 2.4G and 5G, Bluetooth 5.0, Ethernet and a TF card slot, so a cable is not the only route, but it is the one that behaves the same way for every teacher.

Two things are worth settling once, for everybody, rather than in front of a class.

1. 01

   Adapters belong to the laptop, not to the projector

   A teacher whose machine has no full-size HDMI socket needs their own adapter, kept in their own bag. An adapter that lives with the projector is an adapter that goes missing on the day that teacher needs it.

2. 02

   Agree one default route and write it on the room card

   Whether the room is cable-first or wireless-first, a single answer written down beats five teachers each discovering their own on a Monday morning.

Our pre-lesson checklist (on neonplus.com.my) is the thing to run through the first time a teacher uses a classroom they have not presented in before.

How do you book one projector between several classrooms?

Book a shared classroom projector by period, in one list everybody can see, with a named owner for the day and a default home for every period nobody has booked. A unit this size travels easily, which is exactly why a shared resource with no default location is one somebody has to go looking for: at a published 786 g, the Neon+ V6 is small enough to be put down anywhere.

1. 01

   One list, not a WhatsApp thread

   A shared calendar or a printed weekly grid by the staff room door both work. What matters is that it is one list.

2. 02

   Book the room, not the lesson

   The projector has to be carried from somewhere to somewhere, so the booking that matters is which room it is in during which period.

3. 03

   Leave a gap between rooms that are far apart

   Carrying, plugging in and focusing is, in our experience, a two-minute job (an estimate, not a timed measurement) in a classroom with a card on the wall; walking a corridor and a staircase between periods is not.

4. 04

   Give it a default home

   Where it lives when unbooked, and where it is returned to at the end of the day, so the first lesson tomorrow starts without a search.

5. 05

   Name who is accountable each day

   One person or one department per day, with the booking list doubling as the sign-out record and a check at the end of the day that the unit is back in its home. Over a holiday, it goes into one locked place that somebody is named for.

None of that is projector advice, and we are not pretending it is: it is how any shared classroom resource is run. It matters here because the projector is usually the only one in the school small enough to move, which is exactly why it goes missing.

What does carrying a projector between classrooms do to it?

Four things take the wear on a shared unit: the HDMI socket, the power cord, the drop and the heat it is packed with. None of them is exotic, and all four follow any piece of equipment that is picked up several times a day. The fixes are equally ordinary, and all four below are our own practical suggestions rather than manufacturer instructions.

1. 01

   The HDMI socket takes the strain

   Unplug by the connector rather than pulling the cable, and leave a loop of slack rather than a taut run across a desk. A cable in each room is the fix for the taut run.

2. 02

   The power cord is the trip hazard

   The projector is light enough to be pulled off a table by its own adapter cord. Tape the run, or use the extension in the room rather than stretching the one that travels.

3. 03

   Carry it in something

   At 786 g, published, the Neon+ V6 is a one-hand carry, and a one-hand carry is also a one-hand drop. A padded bag or the original box is the difference between a knock and a repair.

4. 04

   Let it cool before it goes in the bag

   Pack a projector that has just been running and the heat stays in it. Switch off, let it stand for a few minutes, then pack.

Neon+'s published FAQ states a 365-day local warranty from the date of purchase and 1-to-1 replacement for product faults arising from manufacturing defects within that period, and, in its own words, that “Damage due to personal negligence, mishandling, or misuse of our products are not covered under warranty”. That last line is the one that matters for a unit several people carry. Our ownership and support guide (on neonplus.com.my) sets out what the terms cover.

When does one shared projector stop being enough?

When two teachers want the shared projector in the same period more than about once a week, the sharing has stopped working. That is the honest signal, and in our view it arrives before anyone complains, because the booking list shows it first. Three other signals are worth watching for, and all of them are about the rooms rather than the machine.

Working out what a few rooms need? Send the number of rooms, the distance to the farthest seat in the biggest one, and whether each room has a socket near the teaching position, and ask the Neon+ team what they recommend. WhatsApp Neon+ on +60 12-565 2091 · Call +60 12-565 2091 · info@neonplus.com.my.

1. 01

   Classrooms that cannot take it

   The published Neon+ V6 has no built-in battery and runs from a 19V/3.42A adapter, so a classroom with no socket in reach is not one this unit can visit, and a battery or powered projector (on neonplus.com.my) is the decision that follows. Nor is a classroom whose back row is too far away for the image the wall allows.

2. 02

   Lessons that start late

   If setup is eating the first five minutes, the room cards are missing, the pre-lesson checks (on neonplus.com.my) are not being run, or the rota is walking the unit too far between periods.

3. 03

   Daylight rooms

   A bright room changes what any projector can do on a wall, which is a different question from sharing; our guide to room light and brightness (on neonplus.com.my) covers it.

A second unit is not the only answer. Fixing the rota, adding a socket, or moving one class to a better room all buy time, and they cost less. What they cannot fix is two rooms needing the image at once.

If the list says it is time, send the Neon+ team the room count and the periods that clash and ask what suits: the published specification differs by model, and only the V6's figures are quoted on this page. Our guide to choosing between the models (on neonplus.com.my) is the place to start.