Tester click
PID: MIKROE‐3083
Weight: 24 g
Tester click is a Click board™ used as a diagnostic tool on the mikroBUS™ socket. It
contains an array of 2x6 LEDs, which signalize the presence of the HIGH/LOW logic level
on each pin, providing a visual feedback to the developer. Two additional LEDs indicate
the presence of +3.3V and +5V on the mikroBUS™ power rails. This simple diagnostic
tool can save hours of troubleshooting, saving the application developer from having to
connect various complicated measurement instruments, only to test logic states on the
specific mikroBUS™ pins.
Each pin of the mikroBUS™ is routed to a red colored LED, which is protected by 1K
resistor. This allows voltages up to VCC to be handled with no issues, providing a simple
and clean solution for pin state testing. Once placed on the mikroBUS™ socket, no
additional settings are required. There are no ICs or other active elements besides the
LEDs. Its simplicity makes it very simple to use: as soon as it is connected, red and green
power indication LEDs will signalize the presence of +3.3V and +5V on both the mikroBUS™
power rails. The rest of the LED array will be lit according to the state on the respective pin.
How does it work?
Development systems that utilize the mikroBUS™ socket, often require using of wire
jumpers and/or connect the measuring equipment, routing the pin to another LED, or using
some other workaround, in order to diagnose states on these pins. With the Tester click,
this task reduces to placing the Click board™ onto the mikroBUS™ that needs to be tested,
and LEDs will indicate if the state on the pin is HIGH or LOW with no additional hardware
settings. This simplifies the troubleshooting greatly, potentially saving hours.
The Click board™ itself consists of an array of 2x6 red colored LEDs, with their anodes
connected each to the respective mikroBUS™ pin, via the 1K resistor. This resistor limits
the current through the diode, allowing more than 5V to be handled with no problems.
Each LED is clearly labeled the same as the pin it is connected to (e.g. PWM pin is routed to
the LED labeled as PWM). Besides the 2x6 LED array, there are two additional LEDs,
connected to the 3.3V and 5V power rails of the mikroBUS™, indicating presence of the VCC
on both power rails. This simple design provides an easy, quick and simple tool to diagnose
states of the mikroBUS™ pins.
To fully understand how to use this Click board™, its best to get familiar with the
mikroBUS™ concept, first. The mikroBUS™ is a standardized connector, used on most of
MikroElektronika development systems. Among other things, it strictly defines the pinout
of the connector, offering all the most commonly used interfaces: SPI, I2C, UART, PWM,
analog input pin (AN) and few additional GPIO pins (chip select pin ‐ CS, interrupt pin ‐ INT,
and reset pin ‐ RST). Also, mikroBUS™ includes two power rails: 3.3V and 5V. This allows
development of many different Click boards™ which can be freely exchanged between
many different systems and platforms, without any hardware reworks or changes ‐ the
appropriate pins will always be at the same place on every system equipped with the
mikroBUS™ socket.
Therefore, this Click board™ can be used to verify the signal integrity of the tested
mikroBUS™, especially while developing customized systems that include one or more
mikroBUS™ sockets, or when developing custom applications. More information about the
mikroBUS™ standard and its requirements can be found on the official mikroBUS™ page.
Specifications
Type
Miscellaneous
Applications
This Click board™ is an ideal solution for testing and diagnostics of
the mikroBUS™ socket pin states.
An array of 2x6 red LEDs with the protection resistors, two mode
Key Features
additional LEDs (red and green) for mikroBUS™ power indication,
simple to use Click board™ diagnostic tool, no additional settings
required
Interface
I2C,Analog,GPIO,PWM,SPI,UART
Input
3.3V or 5V
Voltage
Click board
size
M (42.9 x 25.4 mm)
Pinout diagram
This table shows how the pinout on TESTER click corresponds to the pinout on the
mikroBUS™ socket (the latter shown in the two middle columns).
Notes
Pin
Pin
Analog
AN
1
AN
PWM
16
PWM
Reset
RST
2
RST
INT
15
INT
Notes
PWM
Interrupt
Chip Select
CS
3
CS
RX
14
TX
UART Transmit
SPI Clock
SCK
4
SCK
TX
13
RX
UART Receive
SPI Data Out
SDO
5
MISO
SCL
12
SCL
I2C Clock
SPI Data In
SDI
6
MOSI
SDA
11
SDA
I2C Data
Power supply
3.3V
7
3.3V
5V
10
5V
Ground
GND
8
GND
GND
9
GND
Power supply
Ground
https://www.mikroe.com/tester‐click?search_query=MIKROE‐3083&results=1 7‐11‐18