{"id":11778,"date":"2021-02-14T10:40:42","date_gmt":"2021-02-14T10:40:42","guid":{"rendered":"http:\/\/blog.bachi.net\/?p=11778"},"modified":"2021-02-14T10:43:01","modified_gmt":"2021-02-14T10:43:01","slug":"andreas-spiess","status":"publish","type":"post","link":"https:\/\/blog.bachi.net\/?p=11778","title":{"rendered":"Andreas Spiess"},"content":{"rendered":"

#354 Tasmota vs ESPhome: Who wins? (DIY Sensors, ESP32, Deep-Sleep, etc.)<\/a>
\n#286 How does Software Defined Radio (SDR) work under the Hood? SDR Tutorial<\/a>
\nRISC-V: How much is open source? Featuring the new ESP32-C3<\/a><\/p>\n

With the rollout of the ESP32-S2, learn the differences between it and the ESP32 and compare them to the ESP8266.<\/a><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n
<\/div>\n<\/th>\n
\n
ESP8266<\/a><\/div>\n<\/th>\n
\n
ESP32<\/a><\/div>\n<\/th>\n
\n
ESP32-S2<\/a><\/div>\n<\/th>\n<\/tr>\n<\/thead>\n
\n
release Year<\/div>\n<\/td>\n
\n
2014<\/div>\n<\/td>\n
\n
2016<\/div>\n<\/td>\n
\n
2019<\/div>\n<\/td>\n<\/tr>\n
\n
Microcontroller<\/div>\n<\/td>\n
\n
Xtensa single-core 32-bit L106<\/div>\n<\/td>\n
\n
Xtensa single\/dual-core 32-bit LX6<\/div>\n<\/td>\n
\n
Xtensa single-core 32-bit LX7<\/div>\n<\/td>\n<\/tr>\n
\n
Clock Frequency<\/div>\n<\/td>\n
\n
80 MHz<\/div>\n<\/td>\n
\n
160\/240 MHz<\/div>\n<\/td>\n
\n
240 MHz<\/div>\n<\/td>\n<\/tr>\n
\n
Co-processor<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
ULP<\/div>\n<\/td>\n
\n
ULP (RISC-V)<\/div>\n<\/td>\n<\/tr>\n
\n
SRAM<\/div>\n<\/td>\n
\n
160 KB<\/div>\n<\/td>\n
\n
520 KB<\/div>\n<\/td>\n
\n
320 KB<\/div>\n<\/td>\n<\/tr>\n
\n
ROM<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
448 KB<\/div>\n<\/td>\n
\n
128 KB<\/div>\n<\/td>\n<\/tr>\n
\n
RTC Memory<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
16 KB<\/div>\n<\/td>\n
\n
16 KB<\/div>\n<\/td>\n<\/tr>\n
\n
External SPIRAM<\/div>\n<\/td>\n
\n
Up to 16MB<\/div>\n<\/td>\n
\n
Up to 16MB<\/div>\n<\/td>\n
\n
Up to 128MB<\/div>\n<\/td>\n<\/tr>\n
\n
External Flash<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Up to 1G<\/div>\n<\/td>\n<\/tr>\n
\n
Wi-Fi (802.11 b\/g\/n)<\/div>\n<\/td>\n
\n
HT20<\/div>\n<\/td>\n
\n
HT20<\/div>\n<\/td>\n
\n
HT20<\/div>\n<\/td>\n<\/tr>\n
\n
ESP-MESH<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
Bluetooth<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
BT 4.2 BR\/EDR & BLE<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
Ethernet<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
10\/100 Mbps<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
CAN<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
2.0<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
Time of Flight<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
GPIO (total)<\/div>\n<\/td>\n
\n
16<\/div>\n<\/td>\n
\n
34<\/div>\n<\/td>\n
\n
43<\/div>\n<\/td>\n<\/tr>\n
\n
Touch Sensors<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
10<\/div>\n<\/td>\n
\n
14<\/div>\n<\/td>\n<\/tr>\n
\n
SPI<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n
\n
4<\/div>\n<\/td>\n
\n
4 (OSPI)<\/div>\n<\/td>\n<\/tr>\n
\n
I2C<\/div>\n<\/td>\n
\n
1 (soft)<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n<\/tr>\n
\n
I2S<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n
\n
1<\/div>\n<\/td>\n<\/tr>\n
\n
UART<\/div>\n<\/td>\n
\n
2 (1 \u00bd actually)<\/div>\n<\/td>\n
\n
3<\/div>\n<\/td>\n
\n
2<\/div>\n<\/td>\n<\/tr>\n
\n
ADC<\/div>\n<\/td>\n
\n
1 (10-bit)<\/div>\n<\/td>\n
\n
18 (12-bit)<\/div>\n<\/td>\n
\n
20 (12-bit)<\/div>\n<\/td>\n<\/tr>\n
\n
DAC<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
2 (8-bit)<\/div>\n<\/td>\n
\n
2 (8-bit)<\/div>\n<\/td>\n<\/tr>\n
\n
PWM (soft)<\/div>\n<\/td>\n
\n
8<\/div>\n<\/td>\n
\n
16<\/div>\n<\/td>\n
\n
8<\/div>\n<\/td>\n<\/tr>\n
\n
SDMMC<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
RMT (remote control)<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
USB OTG<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
LCD Interface<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
Camera Interface<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
Temperature sensor<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n<\/tr>\n
\n
Hall sensor<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Yes<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
Security<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
Secure boot Flash encryption 1024-bit OTP<\/div>\n<\/td>\n
\n
Secure boot Flash encryption 4096-bit OTP<\/div>\n<\/td>\n<\/tr>\n
\n
Crypto<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n
\n
AES, SHA-2, RSA, ECC, RNG<\/div>\n<\/td>\n
\n
AES-128\/192\/256, SHA-2, RSA, RNG, HMAC, Digital Signature<\/div>\n<\/td>\n<\/tr>\n
\n
Low Power Consumption<\/div>\n<\/td>\n
\n
20uA<\/a><\/div>\n<\/td>\n
\n
10uA deep sleep<\/a><\/div>\n<\/td>\n
\n
Automatic RF power management 5uA in idle mode 24uA at 1% duty cycle<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

#354 Tasmota vs ESPhome: Who wins? (DIY Sensors, ESP32, Deep-Sleep, etc.) #286 How does Software Defined Radio (SDR) work under the Hood? SDR Tutorial RISC-V: How much is open source? Featuring the new ESP32-C3 With the rollout of the ESP32-S2, learn the differences between it and the ESP32 and compare them to the ESP8266. ESP8266 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11778","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/11778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11778"}],"version-history":[{"count":3,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/11778\/revisions"}],"predecessor-version":[{"id":11781,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/11778\/revisions\/11781"}],"wp:attachment":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}