"What's the difference between all these Freedom boards?"
First, let's talk about the givens. All Freedom boards will have the following:
-OpenSDA Debug Interface
-Pin layout to accept any Arduino(R3) shield
-Multiple Power Options (USB, Battery or External)
-The Cortex-M0+ family excels at low-power operation!!
Now for the bells and whistles:
| FRDM-K20D50M | FRDM-KL25Z | FRDM-KL26Z | FRDM-KL05Z | FRDM-KL02Z | FRDM-KE027Z | FRDM-KL46Z |
|---|
Core MHz Flash/RAM/FlexMem | Cortex-M4 50 128K/16K/32K | Cortex-M0+ 48 128K/16K | Cortex-M0+ 48 128K/16K | Cortex-M0+ 48 32K/4K | Cortex-M0+ 48 32K/4K | Cortex-M0+ 20 64K/4K | Cortex-M0+ 48 256K/32K |
| Typ. Operating Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V | 5V | 3.3V |
| Capacitive Touch Slider | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: |
| RGB Led | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: |
| Light Sensor | :smileycheck: | | | | | | |
| 3-Axis Acceleromter | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: | :smileycheck: |
| Magnometer | | | | | | | :smileycheck: |
| IrDA | | | | | | :smileycheck: | |
| Thermistor | | | | | | :smileycheck: | |
| LCD Display | | | | | | | :smileycheck: |
| Switches | | | | | | | 2 |
| mbed Enabled | | :smileycheck: | | | | | :smileycheck: |
| List Price (USD) | $18.00 | $12.95 | $15.00 | $12.95 | $12.95 | $12.95 | $15.00 |
| Link to Product Page | :smileyinfo: | :smileyinfo: | :smileyinfo: | :smileyinfo: | :smileyinfo: | :smileyinfo: | :smileyinfo: |
If you would like me to add anything to the matrix, post to the comments section below!