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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)# ^' c$ P y% g D$ x2 E) |5 J F
- #include <ESP8266HTTPClient.h>
b' u; H- @9 L: ? - #include <ESP8266WiFi.h>2 b7 L1 l* v8 i! [' {# y6 V- [
- #include <ESP8266WiFiMulti.h>
, d- j1 z) \: N3 V0 z: ]& ~ - #include <ESP8266WebServer.h>/ }' q+ P0 s# _
- #include <arduino.h>
, N: Y* v; ]% U$ d" E - ESP8266WiFiMulti WiFiMulti;
+ y- G& R: ^8 Y( S! x - ESP8266WebServer server(80);- Z3 |5 d* a1 d% h( m, Y& ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' `! x/ b0 l& R. X. f! b# L- G1 C4 W" f - ADC_MODE(ADC_VCC);: [6 p! C* w. |9 o$ e- ?/ s9 Q
- void setup() {) s# l. \0 n% U. f8 U3 ~
- Serial.begin(115200);
- v: ^' M; k% n; Q1 ~0 r3 K - Serial.print("\r\n\n");0 y# |. r9 [* v2 u
- pinMode(2,OUTPUT);5 }+ p7 q! E. j2 Z
- // WIFI6 E7 {3 M5 ]0 ]: W9 s0 J! y1 B& }
- WiFi.mode(WIFI_STA);, s/ I2 x( A6 ], r/ Q$ g" k5 o
- WiFi.hostname("Sparkle");
f \# g* i! l$ e - WiFiMulti.addAP("wifi ssid", "wifi password");
! o% }* X) k [- F: N - int tryNum = 15;
8 y( M/ H4 f; z. y - Serial.print("Connect WiFi");
# L- n! [, e/ U) g0 I" N - while (WiFiMulti.run() != WL_CONNECTED) {2 @; _ N0 q- M* G
- digitalWrite(2,0);# h3 X2 L* w! I3 |! i$ S+ V
- delay(200);$ D8 I& ?6 f% U" F& t6 _$ o
- digitalWrite(2,1);
/ I0 b0 a; \7 ~# `/ K" \6 P - delay(300);4 x0 z, p$ q/ k _& P
- Serial.print(".");4 v, o) H/ z$ A2 R1 x3 e
- tryNum--;
! Q. _5 a9 `; P6 B; s) Q- O - if (tryNum == 0) {
: k7 e. q1 p, o s, f - // 1min/ M, u f! S$ y
- // ESP.deepSleep(60e6);8 v/ c" o n' o8 c9 m) }
- ESP.deepSleep(0);, n6 R% q9 }4 L z7 E# ^
- }1 R/ O/ J5 y/ N9 H! u7 `8 }
- }6 h R5 ]# l+ Y6 P. g; P8 |3 N* M
- Serial.print("\r\n");8 D" a8 M5 j7 H$ G t. h& b" c
- digitalWrite(2,1);2 m+ |, E6 \1 k! m4 j# S b( g. A' \
- Serial.print("IP address : ");
. E$ F2 N8 [+ ? - Serial.println(WiFi.localIP());
& K& Q, E$ }% F5 A4 Q G) X - server.on("/", HTTP_GET, [](){+ n( b5 b; L- {" ]- Q
- server.sendHeader("Connection", "close");
1 ~ x9 N6 l0 d! i1 p, n - server.send(200, "text/html", serverIndex);
* o# [5 w8 v' _+ }! { - });
$ j/ h. O) x7 I2 ^* j - server.on("/update", HTTP_POST, [](){
4 i4 h+ Y* O; h2 Z! F - server.sendHeader("Connection", "close");" L6 w8 x {2 I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) r$ K+ J; l9 o/ ?- M- S0 n
- ESP.restart();; |0 [. ?. L/ I0 g8 X. r
- },[](){
: D8 O4 u3 o& ]! t( s7 k - HTTPUpload& upload = server.upload();: i, N4 a" O( |; {$ x& J4 @
- if(upload.status == UPLOAD_FILE_START){7 Y! L5 M' k: H. g5 K" g7 t
- Serial.setDebugOutput(true);
2 s3 a& p2 R* L - Serial.printf("Update: %s\n", upload.filename.c_str());
1 i4 l# S, W, q r9 Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 s; L5 \# k2 c- n" z* ^, ` - if(!Update.begin(maxSketchSpace)){
4 {: j$ Z* Z1 r) K1 ^6 o9 Z! I- N - Update.printError(Serial);
0 K) P. ]' s' q% E3 T - }
^6 K |& w2 ` r; ? j& z C, T2 o' I - } else if(upload.status == UPLOAD_FILE_WRITE){& F% q5 F. x: B( |& D- A$ D7 P+ ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& a, q C& ?2 G
- Update.printError(Serial);+ h# e1 y) }" D9 u. B$ v
- }
# h; f$ H0 W8 v- V3 [ - } else if(upload.status == UPLOAD_FILE_END){3 t/ Q2 y9 k/ E. z) i+ c
- if(Update.end(true)){
; f2 I8 e% N# }3 K( b! L5 U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 ^: O1 X: l: s: l. @$ M- q4 T; f - } else {8 V4 N* e4 J l+ c; T) @2 ^
- Update.printError(Serial);& g6 O) K7 o6 R! B2 s
- }3 m1 C6 U% S8 h: x. ^# r: y) P$ m, U
- Serial.setDebugOutput(false);
9 p: M- o3 R$ r# a( Z/ ~ r/ X h - }
8 }6 J& E/ U) l; m - yield();
" |/ j' h" z {8 k( E - });* W j _& w- E
-
0 N$ T$ T& J4 q9 U3 p8 x - digitalWrite(2,0);/ Z: y0 i' Z; j& I z
- mainAction(); C- H9 H2 k/ ~+ {4 N. U
- if (digitalRead(0)){
% t9 \2 c, z$ @7 q( A - ESP.deepSleep(0);
& m0 ]) N. I% K( R# E - } else {
: D+ C, C- u5 d8 A. _* T) o - server.begin();2 j9 Q% A" X. g* q$ n2 ~1 y# T0 W, R- D
- }6 ]% a4 z9 W+ [4 N z1 \% _
- }
% }2 {9 M; u J9 |* G O+ T- ] - void loop() {
, J2 T7 I- a0 P8 m" r/ W$ d( W( U - server.handleClient();
) c' t4 [1 S% V6 f: l - delay(1);/ Y5 @5 _- k7 B0 b9 \: |! {
- }- I M! k4 ` R: h
- String doGet(String url){
4 i* P$ l; ]# U - if ((WiFiMulti.run() == WL_CONNECTED)) {
8 l, S+ M% ^! l) e4 I* N - HTTPClient http;+ l9 U% T! }/ ^- `/ F0 [1 F
- Serial.println("[HTTP] begin...");
$ `0 ]4 x9 r$ f: p7 P2 Y - if (url.startsWith("https")) {& ~/ `- I4 x! l3 u
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 z& z3 J0 V' o+ I
- } else {8 R. B2 ~+ ^4 b. o$ V4 K
- http.begin(url);4 R) T& d. v4 A! }* }, H1 p' b
- }
2 J, J) e- p+ U) v - Serial.println("[HTTP] GET...");
( [8 {% k. \8 _+ t" D6 [0 P - int httpCode = http.GET();' ^) Y" a5 l7 O0 B
- if (httpCode > 0) {
1 W) W( D. u3 \# `% l' k - Serial.printf("[HTTP] code: %d\n", httpCode);/ p7 }: C. X' U5 \5 r3 ~2 _
- if (httpCode == HTTP_CODE_OK) {4 m/ w+ a2 v8 r, K" G
- String payload = http.getString();: Q! P- j7 r" o5 [, P9 S
- Serial.println(payload);- x, J3 r! k+ y
- Serial.print("\r\n");
9 a. h7 }- r& _! [* N - return payload;, r! E8 Y; ]* ?5 V- }1 }8 n
- }% ^+ W9 A/ B1 I) B. H0 A9 m( d
- } else {
* Z- R0 H8 G0 V/ k - Serial.printf("[HTTP] GET... failed, error: %s\n",- X0 Q4 ]2 a$ l$ M6 p6 j
- http.errorToString(httpCode).c_str());. N5 X& b2 y5 Q1 f, G t) r
- }( s( Y3 G8 o! ^5 J3 q
- http.end();, }! T$ \) q+ ?; j) o. D; w2 h2 z
- return "";6 P8 i+ l7 K! d9 y9 d+ i
- }3 k# c q2 d7 Y3 m
- }& g4 O: Z" }9 O# k$ y- }! n6 j
- void mainAction() {3 z8 l6 m6 C ^. l
- // 发送请求) B- d7 j& @' a: w4 `
- doGet("http://google.cn");
/ m! ^$ _. s4 G- L - }
8 n' v8 ~# B9 C- e
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