supply, but because the processor is more powerful, a more powerful power supply capable of supplying 2.5A at 5V is necessary.
The RPi Zero 2 W features the same 40-pin GPIO connector as other Raspberry Pi computers, but it does not come with any pins. The header with pins may be too large for some smaller structures, and due to the smallest available dimensions, it is often more advantageous to solder the wires directly to the board.
The Broadcom BCM2710 A1 SoC (System on Chip) at the heart of the Raspberry Pi Zero 2W contains four Cortex-A53 cores clocked at 1 GHz. It is built in a common casing with 512 MB LPDDR2 SDRAM memory and is manufactured in 40 nm technology. The case of such a kit is labeled Raspberry Pi RP3A0. Interestingly, the Raspberry Pi 3 uses the same SoC BCM2710A1 family, but it has CPU cores clocked at 1.2 GHz and 1 GB of RAM.
In other words, you shouldn’t expect the same performance from the Raspberry Pi Zero as you would from the Raspberry Pi 3, but for less demanding applications like the Thonny development environment for the Python programming language, basic web browsing, or simpler games, the performance and memory capacity of the Raspberry Pi Zero 2W are adequate. Furthermore, performance is enough for simple artificial intelligence applications such as image recognition using Tensorflow Lite, voice, machine learning, and so on. RAM capacity is frequently the bottleneck. It should be noted that the 512 MB installed capacity is shared with the graphics core, leaving the operating system with around 450 MB available.
If you wish to use more power permanently, or if you want to overclock the processor, we propose installing a heatsink or using a fan to boost cooling efficiency.
After installing the operating system, you can increase the clock speed by adding lines to the /boot/config.txt file, for example.
over_voltage = 4
arm_freq = 1200
core_freq = 500
The sudo nano /boot/config.txt command opens the /boot/config.txt file in a terminal application. This allows you to raise the processor clock speed to 1.2 GHz (1200 MHz), or by 30%, as well as the VideoCore IV 500 MHz graphics core, resulting in improved graphics performance. Of course, appropriate cooling of the chip is required, which can be accomplished by bonding an aluminum finned heatsink.
The Broadcom VideoCore IV graphics processor supports OpenGL ES 1.1, 2.0, as well as H.264 and MPEG-4 video decoding (1080p30). The highest resolution is full HD, which is 1920 x 1080 pixels, or 1080p. To connect the monitor, a tiny HDMI connector is available. To connect the RPi Zero to the monitor, you’ll need a mini HDMI-to-HDMI converter or a cable with a mini full-size HDMI connector on one end and a regular full-size HDMI connector on the other. Alternatively, you can use a composite video connection, with the signal available at the test point via the RCA (Cinch) connector.
You can use this way, for example, to connect to older TVs that lack an HDMI input. You’re probably wondering why the Raspberry Pi is linked to an old TV. One of the reasons is that there are various preconfigured vintage video game operating system variations, such as Retro Pie, available for the Raspberry Pi Zero. Retro games, on the other hand, have the proper atmosphere on a retro TV. For miniature projects, the display on a suitable LCD display connected via the SPI interface can be used.
On the PCB, there are two micro USB ports. One is powered, while the other utilizes the USB 2.0 standard for connecting external devices like keyboards and mice. To connect devices with a USB-A connector, a USB OTG (On-The-Go) reduction must be used. For example, you can use a kit that employs a common USB radio dongle, an active USB hub, or a keyboard with an integrated touchpad to overcome the difficulty of attaching a keyboard and mouse to a single port.
Because the GPIO connectors and the CSI connector for connecting the camera are the same as on other Raspberry boards, projects made for prior boards can be readily moved to a newer, more powerful board. Bluetooth 4.2, including Blueto