Build Instructions
In its simplest form, building the board consists of soldering all components in their correct places, as shown in the table below.
To make the process of soldering the board as easy as possible, it’s best to start with the smallest components first. All components sit on the top of the board, none on the bottom. The bottom of the board has the eChook logo and board version number printed on it, the top has hte component outline and values.
See the next page for a step-by-step build guide.
High resolution photos of a finished board can be found here. Note that this is a slightly earlier board where the bluetooth wires are soldered directly to the board instead of connected via a header. Also the components appearance may differ slightly to those supplied in the kits, as the suppliers may change between manufacturing runs.

Video Instructions

Ian has recorded a video of building a board: View on Youtube.

PCB Component Reference Table

Use this table to identify which component goes to which label on the PCB
Ref Name
Description
Value / Type
BT
6 way Pin Header
C1
Electrolytic Capacitor
22uF
C3
Ceramic Capacitor
1u
C4
Ceramic Capacitor
1u
C5
Ceramic Capacitor
1u
Current
Pluggable Terminal 5.08mm 4pin
-
D1
Diode Schottky 1A 40V DO41
1N5819RL
Expansion
-
-
Ext
Pluggable Terminal 5.08mm 4pin
-
FS1
Polyfuse, 250mA
250mA
MotorPWM
Pluggable Terminal 5.08mm 2pin
-
PowerIn
Pluggable Terminal 5.08mm 3pin
-
PWM
LED 5mm
-
Q1
Transistor
BC547
R1
Resistor
82K
R2
Resistor
16K
R3
Resistor
82K - originally 33K was used for early boards
R4
Resistor
16K
R5
Resistor
10K
R6
Resistor
1K
R7
Resistor
10K
R8
Resistor
1K
R9
Resistor
1K
R10
Resistor
1K
R11
Resistor
1K
R12
Resistor
1K
R13
Resistor
1K
R14
Resistor
1K
R15
Resistor
470R
R16
Resistor
1K
R17
Resistor
1K
R18
Resistor
1K
R19
Resistor
1K
R20
Resistor
4K7
R21
Resistor
4K7
R22
Resistor
10K
R23
Resistor
10K
R24
Resistor
47K
RPM
Pluggable Terminal 5.08mm 4pin
-
Therm
Pluggable Terminal 5.08mm 3pin
-
Throttle
Pluggable Terminal 5.08mm 3pin
-
U1
Arduino Headers
-
U2
Regulator,6.5-32Vin,5Vout 1A
TSR_1-2450
U3
Dual BIFET Op Amp
MCP6002
Once the board is fully populated there will be a few components remaining. These are the sensors that fit to the car. Your kit may also have a few spare components.
Pin-outs for the connectors on the eChook can be found in the 'Connecting the eChook to the car' section of the documentation.
Last modified 2yr ago