LoliBot-Assembly - Revision history

Jonathan Oxer: /* Step 11: Install servo header */

2018-01-20T23:12:27Z

Step 11: Install servo header

← Older revision		Revision as of 23:12, 20 January 2018
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	== Step 11: Install servo header ==		== Step 11: Install servo header ==
	All the parts that you have installed so far have been on the top of the PCB. The servo header is the small 3-way pin header with a 90-degree bend, and it needs to be installed from the bottom of the PCB instead. Turn the PCB over, find the markings to show the orientation, and insert the shorter end into the PCB:		All the parts that you have installed so far have been on the top of the PCB. The servo header is the small 3-way pin header with a 90-degree bend, and it needs to be installed from the bottom of the PCB instead. Turn the PCB over, find the markings to show the orientation, and insert the shorter end into the PCB.

			Blu-tac is a great way to hold it in place while you solder it from the other side:

	[[File:LoliBot-16-servo-header.jpg\|480px]]		[[File:LoliBot-16-servo-header.jpg\|480px]]

Jonathan Oxer: /* Step 1: Install power LED */

2018-01-20T23:08:21Z

Step 1: Install power LED

← Older revision		Revision as of 23:08, 20 January 2018
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	The power LED is a small red part with two leads. It looks like this:		The power LED is a small red part with two leads. It looks like this:

	[[File:led-pinout.png\|~~240px~~]]		[[File:led-pinout.png\|50px]]

	Here you can see it sitting on the LoliBot PCB just near the position where it will be installed between the "D2" and "PWR" labels:		Here you can see it sitting on the LoliBot PCB just near the position where it will be installed between the "D2" and "PWR" labels:

Jonathan Oxer: /* Step 1: Install power LED */

2018-01-20T23:07:02Z

Step 1: Install power LED

← Older revision		Revision as of 23:07, 20 January 2018
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	If this is your very first time soldering, please ask an instructor to help you with this step.		If this is your very first time soldering, please ask an instructor to help you with this step.

	The power LED is a small red part with two leads. Here you can see it sitting on the LoliBot PCB just near the position where it will be installed between the "D2" and "PWR" labels:		The power LED is a small red part with two leads. It looks like this:

			[[File:led-pinout.png\|240px]]

			Here you can see it sitting on the LoliBot PCB just near the position where it will be installed between the "D2" and "PWR" labels:

	[[File:LoliBot-2-LED.jpg\|480px]]		[[File:LoliBot-2-LED.jpg\|480px]]
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	Look carefully at the legs of the LED. You will notice that one of the legs is longer than the other. Also, there is a small flat section on the body next to the shorter leg. LEDs are "polarised", which means they need to be installed the right way around. If you install it backward, it won't work.		Look carefully at the legs of the LED. You will notice that one of the legs is longer than the other. Also, there is a small flat section on the body next to the shorter leg. LEDs are "polarised", which means they need to be installed the right way around. If you install it backward, it won't work.

	Insert the LED into the PCB with the pins oriented as shown above. Then, hold the body of the LED against the PCB while you gently bend the legs apart underneath the board, so that it is held in position and can't fall out:		Insert the LED into the PCB with the pins oriented as shown above.

			Then hold the body of the LED against the PCB while you gently bend the legs apart underneath the board, so that it is held in position and can't fall out:

	[[File:LoliBot-3-LED.jpg\|480px]]		[[File:LoliBot-3-LED.jpg\|480px]]

Jonathan Oxer: /* Step 19: Insert battery and connect power */

2018-01-19T19:15:49Z

Step 19: Insert battery and connect power

← Older revision		Revision as of 19:15, 19 January 2018
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	'''IMPORTANT:''' Check the polarity symbols on the battery and make sure you insert it the right way around. There's nothing stopping you from installing it backwards, but then very bad things might happen, so don't do it!		'''IMPORTANT:''' Check the polarity symbols on the battery and make sure you insert it the right way around. There's nothing stopping you from installing it backwards, but then very bad things might happen, so don't do it!

	The battery fits VERY tightly in the holder. It will take some force to insert it properly.		The battery fits VERY tightly in the holder. It will take some force to insert it properly. Be careful that the holder pins are not being squished under the battery as you press down.

	Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.		Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.

Jonathan Oxer at 07:08, 19 January 2018

2018-01-19T07:08:51Z

← Older revision		Revision as of 07:08, 19 January 2018
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	[[File:LoliBot-25-wheels.jpg\|480px]]		[[File:LoliBot-25-wheels.jpg\|480px]]

	== Step 19~~: Install Battery ==~~		== Step 19: Insert battery and connect power ==
	~~'''Make sure the power switch is OFF''' before proceeding.~~

	~~Warning: the battery is a '''very''' tight fit! Check the polarity of the battery and match it to the symbols in the battery holder. The positive end should be towards the back of the robot.~~

	Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.

	~~[[File:LoliBot-26-power.jpg\|480px]]~~

	~~== Step 17~~: Insert battery and connect power ==
	Remove the clear plastic wrapper that covers the terminals of the battery, and insert the battery into the battery holder.		Remove the clear plastic wrapper that covers the terminals of the battery, and insert the battery into the battery holder.

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	The battery fits VERY tightly in the holder. It will take some force to insert it properly.		The battery fits VERY tightly in the holder. It will take some force to insert it properly.

	Plug ~~the JST power lead into~~ the Lolin32-Lite if you ~~haven~~'t ~~already~~.		Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.

			[[File:LoliBot-26-power.jpg\|480px]]

	You're done with the hardware assembly! The Lolin32-Lite needs software installed to control your robot, so the next step is to proceed with software setup.		You're done with the hardware assembly! The Lolin32-Lite needs software installed to control your robot, so the next step is to proceed with software setup.

Jonathan Oxer: /* Step 19: Install Battery */

2018-01-19T07:07:20Z

Step 19: Install Battery

← Older revision		Revision as of 07:07, 19 January 2018
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	Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.		Plug in the Lolin32-Lite and the IMU module if you've previously removed them, and insert the power lead into the Lolin. The power leads have all had their red and black wires swapped before they were put in the kit, so they should have the red lead to the left and the black lead to the right like in the photo. If it doesn't, STOP and check with one of the organisers before connecting any power.

			[[File:LoliBot-26-power.jpg\|480px]]

	== Step 17: Insert battery and connect power ==		== Step 17: Insert battery and connect power ==

Jonathan Oxer: /* Step 18: Attach wheels */

2018-01-19T07:06:37Z

Step 18: Attach wheels

← Older revision		Revision as of 07:06, 19 January 2018
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	== Step 18: Attach wheels ==		== Step 18: Attach wheels ==
	The wheels are a tight press-fit onto the motor axles. Hold each motor while you press on the wheel. The hole in the wheel has flattened sides to prevent it rotating on the axle, so make sure it's aligned correctly before pressing it on.		The wheels are a tight press-fit onto the motor axles. Hold each motor while you press on the wheel. The hole in the wheel has flattened sides to prevent it rotating on the axle, so make sure it's aligned correctly before pressing it on.

			[[File:LoliBot-25-wheels.jpg\|480px]]

	== Step 19: Install Battery ==		== Step 19: Install Battery ==

Jonathan Oxer: /* Step 17: Attach servo */

2018-01-19T07:04:11Z

Step 17: Attach servo

@@ Line 176: / Line 176: @@
 == Step 17: Attach servo ==
-Tn.
+Press the long symmetrical servo horn (the white piece of plastic) onto the top of the servo, and use the smallest screw to attach it. Don't use too much force on the screw because you can break the plastic.
 == Step 18: Attach wheels ==

Jonathan Oxer: /* Step 16: Install reflectance sensor */

2018-01-19T06:57:21Z

Step 16: Install reflectance sensor

← Older revision		Revision as of 06:57, 19 January 2018
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	[[File:LoliBot-23-reflect-5.jpg\|480px]]		[[File:LoliBot-23-reflect-5.jpg\|480px]]

	~~Just to the clear, when~~ looking at the module from the back it should be connected like this:		When looking at the module from the back it should be connected like this:

	[[File:LoliBot-23-reflect-6.jpg\|480px]]		[[File:LoliBot-23-reflect-6.jpg\|480px]]

Jonathan Oxer: /* Step 16: Install reflectance sensor */

2018-01-19T06:54:40Z

Step 16: Install reflectance sensor

@@ Line 147: / Line 147: @@
 == Step 16: Install reflectance sensor ==
-Thn.
+This is where you get to experience the joy of working around design mistakes! Unfortunately the pinout on the PCB is for half of a Freetronics reflectance sensor, but we sourced a different type of module instead which has a different pinout. That means you '''can't''' simply connect the reflectance sensor module directly to the PCB as we had planned.
 == Step 17: Attach servo ==