Put the heart rate sensor in sleep mode by setting the PDRIVER (0x0C) register to 0, see the HRS3300 datasheet for details. You then want to insert the pin pusher over the pin for the relevant number of links you want to remove — remember, you want to remove half on each side of the clasp. Then, using the included hammer (a regular hammer can also work if you’re careful), lightly tap the pin pusher until you can’t push it any further into the link. Rotate your watch and pull the pin loose from the other side using a pair of pliers of your fingers. Be ready for the links to fall free and watch out for ferrules falling loose too. Don’t lose the pins or ferrules — keep them to hand on a tray.

What you find here in the general build of these watches is nothing special. These are quartz watches, featuring analog displays. The cases are made from metal alloys. Dial windows are typically mineral crystal. The HRS3300 sensor is enabled on power on. Write byte 0x00 to the PDRIVER register (0x0C) to set it in sleep mode.XTX XT25F32B 32Mb(4MB) SPI NOR Flash (data sheets for this part are hard to find but it acts similar to other QuadSPI SPI NOR Flash such as Macronix 32Mb(4MB) SPI NOR Flash)

No these won’t fool anybody up close, but from a distance, and in passing, they do have the glitter and luster of a bust down watch. Definitely not bad for a watch that has no real diamonds in it. You’ll want to repeat this method on both immediate sides of the clasp itself as well as for the number of links you want to remove on the other side of the strap. Amazfish (SailfishOS and Linux) - Companion mobile and desktop app, supports updating firmware/bootloader, send notifications, etc.

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SLEEP (reset the touchpanel using the reset pin before using this register: pin_low, delay 5ms, pin_high, delay 50ms then write 3 to register 0xA5) So, are Pintime watches really worth it? All things considered, you are looking at a watch that definitely doesn’t hold to the highest of quality standards. For what they are though, and for such a low price, they aren’t bad really. I can’t complain.

Touch information is available from the 63 first registers of the controller. Remember: the device is in sleep mode when no touch event is detected. It means that you can read the register only when the touch controller detected an event. You can use the Interrupt pin to detect such event in the software. Reading the battery voltage is a bit harder. For that you can use the battery voltage pin on P0.31 (AIN7). The returned value is 12 bits, which means it is 0..4095. You can get the measured voltage with the following formula, assuming a reference voltage of 3.3V (this is configurable in the ADC): But we’re not here to talk about that today. Instead, we are here to talk about this super cheap brand that does not contain any real diamonds yet has the same style of a bust down watch. Chip select must be held low while driving the display. It must be high when using other SPI devices on the same bus (such as external flash storage) so that the display controller won't respond to the wrong commands. Note: The part number for the SPI FLASH in the schematic diagram is not correct, the PineTime features a larger external FLASH device, see below.

🍪 Privacy & Transparency

Being this cheap is a good thing, as it takes away some of the potential buyer apprehension. There is not as much to potentially lose, if you are not investing a whole lot of money into a watch anyway. NOTE: The controller goes to sleep when no event is detected. In sleep mode, the controller does not communicate on the I²C bus (it appears disconnected). So, for the communication to work, you need to tap on the screen so that the chip wakes-up. While enabled, the button in pin (P0.13) will be high when the button is pressed, and low when it is not pressed. There are no cases for PineTime yet, but some cases for Fitbit are suitable for it. Cases for Fitbit have one microphone hole, which is unnecessary for the PineTime, but otherwise they fit perfectly. The display is driven using the ST7789 display controller. Use the following pins to drive the screen:

Luxurious and sporty design: The watch has a unique and eye-catching appearance with a diamond CZ embedded in the dial. It is perfect for everyday wear and can withstand splashes and brief immersion in water.

In terms of style, these do hit the mark, and they do present the look that they are going for. Just don’t be surprised if they give away their real value upon closer inspection.