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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): A9 E4 R2 n+ k) E, h, _
- #include <ESP8266HTTPClient.h>" B6 E& F X& @( b9 M* L. U1 ^& X9 T4 u
- #include <ESP8266WiFi.h>
. P( n1 E0 ?6 [& i. W - #include <ESP8266WiFiMulti.h>
1 B2 k Z! _1 b1 y - #include <ESP8266WebServer.h>, ?: E% a1 b( l
- #include <arduino.h>" ~$ d) a" G7 o6 t% @; h( K+ z: ?
- ESP8266WiFiMulti WiFiMulti;
1 T% I' a& [& a0 _+ r0 c8 a - ESP8266WebServer server(80);" c& @; Z, _3 q( u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( ?. j% ?8 [7 \$ q+ X: _- B - ADC_MODE(ADC_VCC);0 L g" t. {- P. J$ `! W
- void setup() {
& B( i5 r8 [; n' Q4 m* F$ c! | - Serial.begin(115200);" h5 y3 p: x |% J; d
- Serial.print("\r\n\n");- }5 n, m+ v" e! r1 R. a$ Y
- pinMode(2,OUTPUT);# P6 `, a: y* b0 z
- // WIFI4 t& S' K& Z2 k! q* F
- WiFi.mode(WIFI_STA);
$ y( N/ } ?8 g1 e) X" m - WiFi.hostname("Sparkle");' y* `! m$ I" S& d+ Z; ]5 j
- WiFiMulti.addAP("wifi ssid", "wifi password");
* w) w5 ?$ P% w W+ { - int tryNum = 15;0 @4 d5 b* w" y
- Serial.print("Connect WiFi");2 B7 X5 U a8 F3 a# o9 m6 {; @
- while (WiFiMulti.run() != WL_CONNECTED) {4 V( s* j" O% U$ G: `9 N) Y4 x
- digitalWrite(2,0);
5 b) @( y& z- N* H7 l - delay(200);3 V Z% A4 G: ^
- digitalWrite(2,1);" ]1 s5 u0 A' k
- delay(300);3 o" _1 }! d) e) B' C4 r
- Serial.print(".");
0 ^1 T u+ x- `! Z9 u( N5 ^ - tryNum--;
4 m* O" G! y. z - if (tryNum == 0) {* @( j, P, E$ n
- // 1min
1 p& s [! m, E7 h - // ESP.deepSleep(60e6);8 K% ]5 ^; Q G9 _' B- U* z
- ESP.deepSleep(0);) v- Z0 P4 v3 J# R: Y' [
- }
; \% ^3 k9 B* ~5 Q& @8 c- x - }
0 K4 t1 F; G7 _& U* H - Serial.print("\r\n");
% o; P# |" q. D* ` - digitalWrite(2,1);
4 s* i; H6 |7 }( h - Serial.print("IP address : ");( w* y* u- C4 c7 @6 D+ f$ w, r
- Serial.println(WiFi.localIP());
5 _# m; i* j6 P' s: ]- l - server.on("/", HTTP_GET, [](){" E3 O% S" I1 |( V# k8 g
- server.sendHeader("Connection", "close");
+ U3 Z ~* M, N4 T7 S9 i - server.send(200, "text/html", serverIndex);+ z f' v2 a9 u7 O
- });. ^0 G$ t8 O! x3 C, W/ F7 r0 M! ]
- server.on("/update", HTTP_POST, [](){+ y( ^% p/ ?- U4 h( G
- server.sendHeader("Connection", "close");
# V. u5 l# J$ A2 C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- M5 g/ i- X% i0 c
- ESP.restart();- k0 O R: W2 J! ^
- },[](){
: X1 n& i* G* Z* m" v. c# G9 R - HTTPUpload& upload = server.upload();. S) P, \3 z3 ~1 a, V/ i7 O0 j/ J
- if(upload.status == UPLOAD_FILE_START){
0 ~6 ~( V- G# z& w% ?" @ - Serial.setDebugOutput(true);
% _: Z0 ?( Q/ R7 w( d7 N: Y) x - Serial.printf("Update: %s\n", upload.filename.c_str());
3 T* m: G+ Z5 s# C, ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' j& g: J0 N6 Y' l; G - if(!Update.begin(maxSketchSpace)){
. B3 [0 l' ?" P8 t+ U, V! H - Update.printError(Serial);
# Q( i9 J# A' i: h: h# \5 B- M - }( l. g B' M5 X
- } else if(upload.status == UPLOAD_FILE_WRITE){0 y7 Y5 I7 |% r2 k7 [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 h8 d/ _2 \5 I" L, E - Update.printError(Serial);
6 @: h" o( f1 e- L9 `8 ~ - }% \7 e: L" x* q; H/ y/ W) E; b
- } else if(upload.status == UPLOAD_FILE_END){6 r- q8 N/ `# @' V8 ]5 ^7 T3 P
- if(Update.end(true)){
6 x+ V6 E& {, E/ _8 \- U& K - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. A* g2 t! m$ p* J. m! y
- } else {
4 V4 O* D; R8 a E1 Z0 d - Update.printError(Serial);7 D6 {! x0 d, K
- }
# n; Q) p1 d7 M* E7 h. |: T - Serial.setDebugOutput(false);6 c, S1 L1 y* }+ {0 ]) B$ Z
- }
. H) ?) q( l1 B1 d - yield();4 I3 x# t- D6 t9 E0 w7 \2 K
- });8 P5 q- P! u# k
- & d2 }+ h4 e6 l! \/ C q! E
- digitalWrite(2,0);
9 n9 Q: y, e+ f. i* T8 }( q8 t - mainAction();2 ]7 h$ m7 j- t, d7 K7 U- [
- if (digitalRead(0)){
3 k" R$ n- ? x4 c8 y - ESP.deepSleep(0);
0 F' p8 {3 v$ x9 l6 J1 H+ B - } else {) O; Z+ |9 l3 N2 b/ s6 H; ~
- server.begin();
4 I3 H, X% q0 Q A - }. Q8 ~& t2 m6 j% a8 Q$ A7 b/ \
- }
% M' \2 P% c2 k* Z - void loop() {
- X0 W2 e9 b2 G8 X, w7 |) Z - server.handleClient();
. _$ n) @9 r. b L' D4 B8 g. [ - delay(1);% ` {: Z) l7 i2 Q0 l9 S& R' }
- }. j7 q6 I5 J7 V q
- String doGet(String url){
B1 r% A0 }. n2 b" B- f9 N& B - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 l+ }0 d+ c5 \$ z - HTTPClient http;" M5 }( W1 c }4 T7 l
- Serial.println("[HTTP] begin...");# l+ A0 G; _. h8 }3 [0 W7 O7 g
- if (url.startsWith("https")) {
7 Z" r7 E/ D. l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, W! k H) V6 @- _. ` - } else {# w$ Q( \6 ]8 L c# Q! Z- u& {
- http.begin(url);3 f2 m( b! i" t
- }/ v+ ]9 b6 J! X! O' ]: g) I* I
- Serial.println("[HTTP] GET...");
5 ^' j; |/ k2 ^4 R, @5 X; ?, k - int httpCode = http.GET();
o+ m* r% C; I( h$ |1 K - if (httpCode > 0) {) {9 J( s* U; F2 ?7 J
- Serial.printf("[HTTP] code: %d\n", httpCode);, F' ~/ G3 K8 p8 J/ D9 x. |
- if (httpCode == HTTP_CODE_OK) {
" m4 z2 }9 j w5 k5 z1 \! Z - String payload = http.getString();* p: i% l& |" E' S* c0 z& N9 ^9 N5 a
- Serial.println(payload);
/ w$ x7 ]; z7 n/ E, [% A8 D - Serial.print("\r\n");8 ^9 _7 C3 w9 R2 J2 |
- return payload;% `: Q! _1 @2 B" X4 Q4 [0 ?2 m% B3 u
- }
n7 X c$ u" Y' Y& E' |3 y# x& G - } else {
- K& I$ F1 g& _" L; Z - Serial.printf("[HTTP] GET... failed, error: %s\n",
6 ]( D% y$ P7 s: @6 _* \$ A3 K - http.errorToString(httpCode).c_str());1 z* O- R, h/ u$ w
- }1 E' k4 j- w* U) j; z0 A1 k8 K8 X; D
- http.end();
+ Z. t5 Z1 K+ Q) B4 K0 x, @ - return "";
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- }3 C+ S3 {9 M' L6 k8 L8 ~1 u/ d
- void mainAction() {/ u% p- q( e: l0 q: x9 ~# o# U( D: K
- // 发送请求
+ a+ e E# ]( P" ^* L, U- g- g - doGet("http://google.cn");
" z% \6 D8 Z, R6 w' q. v - }* t+ {; x1 ^, ?) _, h5 c" Y
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