Esp32 idea spark with cc1101 v2

Projects Networking, Protocols, and Devices
1

Good afternoon all,

I am new to the world of esp32 boards. For the life of me I cannot find any wiring diagrams which actually work to connect both devices together.

I’ve cables them several ways without success. I’ve tired a combination of code and libraries and keep getting watchdog errors or spi issues.

If anyone who has successfully connected these 2 devices together via jumper cables and successfully uploaded code for transmitting or receiving on 433mhz, please let me know.

Thank you all for reading my post.

2

Start by reading the pinned post re 'How to get the most from the forum', HINT, wiring diagram, even photo of a hand drawn will do and of course code after auto format in code tags. If there is any serial output post that also in code tags.

3

Here you can find wiring scheme and code examples.

4

Thank you both for your feedback.

The GitHub link you provided only has wiring diagrams for the CC1101 v1 and not V2 which has a different pin layout.

Reading through this forum, there seems to be several people experience the same issue. I am a complete newbie so I apologies in advance if my post is not clear or missing information. I appreciate any help. Happy to add anything else which may help work out where the issue is. Just to add, I have 2 brand new esp board and 2 cc1101 v2 modules and they are both producing identical errors so we could possibly rule out a hardware issue

I have an idea spark ESP32 board and a CC1101 V2 module.

I have tried elechouse, driver lib, radiolib and several others.

Pin arrangement between the esp32 and CC1101 v2 is like this

CC1101 V2 Pin,Function,ESP32 Pin
Pin 1,GND,GND
Pin 2,VCC (3.3V),3.3V
Pin 3,GDO0 (Interrupt),GPIO2
Pin 4,CSN (Chip Select),GPIO5 (SS)
Pin 5,SCK (SPI Clock),GPIO18 (SCK)
Pin 6,MOSI (SPI Data Out),GPIO23 (MOSI)
Pin 7,MISO (SPI Data In),GPIO19 (MISO)
Pin 8,GDO2 (Optional),Not Connected

Error under serial monitor

(TG1WDT_SYS_RESET),boot:0x1b (SPI_FAST_FLASH_BOOT)

configsip: 0, SPIWP:0xee

clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00

mode:DIO, clock div:1

load:0x3fff0030,len:4688

load:0x40078000,len:15460

ho 0 tail 12 room 4

load:0x40080400,len:4

load:0x40080404,len:3196

entry 0x400805a4

🔧 Initializing SPI...

📡 Initializing CC1101...

ets Jul 29 2019 12:21:46

5

I don't chase links, bye.

6

There is not officially something like V1 or V2. Texas Instruments has only CC1101 and E/L variants. Chinese module manufacturers can label their products however they want and the pins can be in different order between different modules. That doesn't matter if pins are correctly labeled on the pcb. That's not always the case though...

Is your board working if you upload something simple, like blink while keeping the board wired to CC1101?