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Questions tagged [cp2102]

The CP2102 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space.

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ESP32 Dev Board DTR/RTS

I recently got an ESP32 development board. I also found the schematic to this board online but I got an question. Can someone explain to me, what this part of the circuit is doing? Schematic: https://...
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Does CP2102N-QFN24 has native support for Android 8.0 or above?

I want to use CP2102N-QFN24 USB to UART chip with Android phones having API 26 and above. Does this chip has native support for Android phones with API 26 and above or need to download/install some-...
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72 views

Do I need external pull up resistors for TX and RX lines in CP2102N?

I want to use it to program a microcontroller and this is the recommended set up from the data sheet. I was wonder If I need these resistors or not. I am not asking if STM32 chips require pull ups. ...
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103 views

Connect to a serial output device with 12V power input with 5V USB-TO-UART

I have DG600F coin acceptor with 12V power input and serial port output CP2102 usb-uart bridge and FDTI TTL-232RG cabel as an alternative A PC and Macbook as alternative I need to connect DG600F to ...
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24 views

AT328 + CP2102(firmware update) + control

we used the AT328 be a microcontroller to control relays. But we want to use CP2102 to update the firmware, before we used the NANO be a bootloader to update the firmware to AT328. Is it possible to ...
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1answer
487 views

ESP-WROOM-32 layout USB-UART

I want my layout will include female headers to connect CP2102 MICRO USB to UART TTL Module 6Pin so I could just 'stick' it to my PCB while uploading the code. The 5V for the ESP will be supply from ...
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1answer
157 views

CP2102N Short Between D+ and D-

I am measuring a short between the D+ and D- lines between the USB micro connector and USB to UART chip (CP2102N). However by looking at the photos, there doesn't appear to be a short. Should I assume ...
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1answer
75 views

5V USB and 110VAC proper procedure?

My apologies in advance if this has already been asked I have a MCU (esp8266 or esp32) which will primarily live off mains power with transformer 110VAC -> DC 3.3V Occasionally USB is plugged into ...
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901 views

USART not working with CP2102 adapter and STM32F1 Blue Pill board

Having programmed 8-bit AVR MCU's, I bought Blue Pill STM32F103C8 dev board from ebay. It has 8MHz external crystal and I program it with ST-Link on Mac. I saw a lot of options like HAL, etc, but I ...
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Upgrading firmware of SIM800C

My SIM800C, feeded directly from a 4.0V Li-ion battery (or once, from a Delta bench PSU) through a 1500 µF capacitor, instantly turns off when it wants to join to my 2G+ European network (e.g. in <...
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130 views

Issue in CP2102 Breakout module interface with PIC16F877a microcontroller

How to make pin connection between PIC16F877a and CP2102 Breakout module? below is what i am using now with many pins(confusing). what are the pins should connect with the PIC microcontroller for ...
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297 views

WiFi ESP8266 ESP-07 adapter role

I'm confused about the role of the Let's assume that I want to use it along with a and I want to flash it with . The adapter should be used with both CP2102 and the relay or just with the relay?...
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215 views

CP2108 with level converter txb0108 - UART communication TTL and LVTTL

My project uses four different modems (one 3v3 LVTTL(?) and three 5v TTL) for AT communication. Each modem has a UART interface (TTL compatible). For my application, i chose the CP2108 to ...
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1answer
4k views

Flashing Hex File to AT89C51

I have a USB to Serial breakout which has CP2102 and MAX232 chips on it. I wrote a program in Keil and generated the Hex File. How do I flash this hex file onto the AT89C51 (which is also another ...
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1answer
333 views

May I connect two voltage sources together if they are aprox. the same voltage? (CP2102)

I am making a circuit in which I have two voltage sources of 3.3V: - First is AMS1117-3.3V voltage regulator. According to datasheet, its output voltage is typical 3.3V, but could be as low as 3.2V ...
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1answer
1k views

How to connect with and use a USART to USB converter (CP2102 by Silabs)?

I figured since this is a very specific problem with a hardware device that many on SuperUser might not be familiar with, I would try posting here. I searched around on the net a bit and found a ...
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1answer
2k views

How does the Arduino do serial communication with a PC?

I am trying to develop a program such that I am able to communicate over USB to a PC. I have developed a usart library that I can use for such a purpose, but the problem in-lies with the conversion to ...