crwdns2933803:05crwdne2933803:0
crwdns2933797:0dfghe34yh46u34crwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 dfghe34yh46u34
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| [title] Explore the PCB | |
| - | [* black] |
| + | [* black] Now let's see what kinds of ICs are being used: |
| [* light_blue] Nordic [https://www.nordicsemi.com/eng/Products/ANT/nRF51422|nRF51422] low power RF SoC. Used for Bluetooth LE. | |
| [* orange] Cypress [http://www.cypress.com/file/130051/download|CY8C20767]capacitive touch controller. | |
| [* red] Maxim [https://www.maximintegrated.com/en/products/power/battery-management/MAX14676.html|14676B] wearable charge management IC. | |
| [* yellow] Assumed to be an ARM Cortex-M microcontroller. Freescale, the manufacturer, is no longer in business, as it was purchased by NXP recently - this makes it hard to look up the marking. | |
| - | [* black] There are all kinds of test points visible on the back. Garmin must do a pretty thorough |
| - | [* black] Looking side-on, you can see that the flex circuitry is sandwiched between two |
| + | [* black] There are all kinds of test points visible on the back. Garmin must do a pretty thorough QA. |
| + | [* black] Looking side-on, you can see that the flex circuitry is sandwiched between two sets of rigid PCB. |