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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)7 [; u1 @4 a6 v b8 Q I$ \
- #include <ESP8266HTTPClient.h>
" Q, G( J8 @2 B/ r# N! C2 Q4 b - #include <ESP8266WiFi.h>8 Y4 z( I. }8 D1 o5 G' U
- #include <ESP8266WiFiMulti.h>
* d+ H4 O4 G G' C( t/ R - #include <ESP8266WebServer.h>
0 t# W" ?* \' @5 O& @2 _- V# E - #include <arduino.h>6 s$ v5 S5 ~9 ^2 I2 C7 L
- ESP8266WiFiMulti WiFiMulti;0 R, b7 p& P2 P6 ~8 A
- ESP8266WebServer server(80);/ J* H8 |5 ]9 |% t" ?; r
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: R+ N2 p# j* W; K' i+ H R - ADC_MODE(ADC_VCC);
+ a! e+ M0 N( ?3 E, i, d+ G - void setup() {" g, s3 t' E8 j
- Serial.begin(115200); {) H5 d- }1 ]
- Serial.print("\r\n\n");
3 F+ }; q, [& d4 x5 D8 T- x - pinMode(2,OUTPUT);- d' `' A* `/ p8 Q
- // WIFI/ D/ x6 N8 G1 a4 k, ?5 v
- WiFi.mode(WIFI_STA);1 b, A% Y* ?' P' ?
- WiFi.hostname("Sparkle");4 ?: {. }% I3 [ b8 o9 N1 r
- WiFiMulti.addAP("wifi ssid", "wifi password");" x+ ~) t* t8 f& i! L' O' A* c7 Z
- int tryNum = 15;; Y3 [% z: h# |: R3 A
- Serial.print("Connect WiFi");# ~" h4 O7 W1 ]& _
- while (WiFiMulti.run() != WL_CONNECTED) { P( P5 n5 X" I o# O8 E. R
- digitalWrite(2,0);1 F1 A7 A) c* o( i" M# W/ b
- delay(200);5 w% d) b- k' d6 U6 F4 G1 \4 i
- digitalWrite(2,1);" L% Z% k) G1 j% b, P/ d
- delay(300);5 X& Q$ o" x- E: k) ]# K& V: i
- Serial.print(".");3 |* L" P" q& j, Q# [
- tryNum--;
: [ g! f$ e* n# \2 }& N - if (tryNum == 0) {" C3 _0 M v9 E+ L, k t
- // 1min; o1 Q: T1 G( w, C6 p4 J
- // ESP.deepSleep(60e6);- B" e6 K& W* S) v1 E0 `7 G* W
- ESP.deepSleep(0);
6 W1 F" ]6 \: u8 V - }' c# ~( o/ n2 v
- }8 Q3 _* s7 J- h1 P" f
- Serial.print("\r\n"); v& r5 F/ R( k# H$ \1 H
- digitalWrite(2,1);
! k3 c, K G4 t2 |7 Q$ l - Serial.print("IP address : ");
0 n4 E% Q. m# G+ L5 z6 F* | - Serial.println(WiFi.localIP());
2 C# F7 M7 Z6 J( c5 q: v - server.on("/", HTTP_GET, [](){$ T" K& R! r/ d3 b5 ^" a6 D
- server.sendHeader("Connection", "close");
; U# d+ \" g+ y; ?% Q8 ?/ A. v" w& b - server.send(200, "text/html", serverIndex);
/ N! W+ P0 R4 l) n0 x3 J+ Y. B - });
. M0 o% e' q9 b" x* ~! T" R0 e - server.on("/update", HTTP_POST, [](){
! B4 U3 l$ k O( X0 Z - server.sendHeader("Connection", "close");: p! @, X5 f, Z. J6 Z+ Q: W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 I. k2 j- [/ T5 S
- ESP.restart();6 j" H3 f% Z' c3 Z$ q$ B3 Z P
- },[](){
" P& ~& x9 [- j( A! G - HTTPUpload& upload = server.upload();
) H& Q8 V2 z5 s% c - if(upload.status == UPLOAD_FILE_START){" L/ J, P+ C4 u* N6 n9 t! [2 G
- Serial.setDebugOutput(true);
* @& g5 K: Y ?/ Q - Serial.printf("Update: %s\n", upload.filename.c_str());0 A% {, |4 _1 I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- k( P$ X# \) \& T - if(!Update.begin(maxSketchSpace)){
" e* a( ?' z8 @0 d5 F3 W - Update.printError(Serial);. n3 m% g' U, {5 Z0 [, }
- }7 a0 N, O: X$ N9 q
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 @; q/ e" y; S8 ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; z; G- d/ r) \$ Z2 ~8 R
- Update.printError(Serial);0 d# p3 S6 [. I6 w& ?
- }+ J- ~. k$ l, h8 `8 C
- } else if(upload.status == UPLOAD_FILE_END){/ z" E3 D4 k5 S
- if(Update.end(true)){
. {4 P# s- w( T4 S - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ ]( k" S. N4 S; w - } else {
$ C! i: s$ R: P' q! L! ~ - Update.printError(Serial);2 Q5 V/ w- d' z' u* r/ d1 O" z$ y
- }
/ U/ w) y1 N* Y+ m( u - Serial.setDebugOutput(false);
0 i/ h- e* K* ^, s. w - }
?+ d+ x) r1 F% y4 D - yield();
: j) I4 G) U9 b x z' o( y0 q - });
3 v0 G5 u1 i7 w$ V/ Q9 w# y2 P- |& O - 1 h. n6 p& j: A
- digitalWrite(2,0);1 a9 |% t3 I5 b6 B6 v" K
- mainAction();
; O- H4 s& ?$ `4 {3 B7 { - if (digitalRead(0)){
; T# F* J9 r) Z2 H - ESP.deepSleep(0);
, ?' R! n/ P, w, H+ E - } else {: H3 }7 c2 N* C, u
- server.begin();
# q# h, o; c) Y* }" G7 \ - }9 {8 r5 Y6 S$ x; Q, H/ {- f
- }, H' Y% l) d, ~/ q) U( o
- void loop() {
0 C/ Z n% B0 \. Z - server.handleClient();
, E5 K% F% s D - delay(1);* U+ `! O- E+ u! U7 ?; e
- }! W7 L0 U3 Y5 }$ m
- String doGet(String url){
& A" P) U3 ^- Q2 Y6 u - if ((WiFiMulti.run() == WL_CONNECTED)) {2 O" N/ h/ `) J# A; e
- HTTPClient http;$ W1 ~4 Z# z( }7 N/ g+ X
- Serial.println("[HTTP] begin...");& `5 [5 h" Q9 _" j0 K* U0 ?5 S4 S
- if (url.startsWith("https")) {
# x# B' Y3 w7 R9 A, j+ O9 s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) K; ^+ F; Q& K" G8 ^5 R) K
- } else {
0 ]. D* M0 ~5 J" u- i3 ` - http.begin(url);
- Z* z$ D6 _+ p - }( F, L' h( F P; C$ J( P. {
- Serial.println("[HTTP] GET...");% w: F9 r* P: {
- int httpCode = http.GET();
5 m6 q' s& t3 b; W7 c( ]+ R, L - if (httpCode > 0) {1 e4 G' u, s. D6 q
- Serial.printf("[HTTP] code: %d\n", httpCode);
! g+ r, Y8 h% T( j0 j0 L8 h4 q8 r - if (httpCode == HTTP_CODE_OK) {
+ t3 C! E) }8 m/ k- ~ - String payload = http.getString();+ f, R' v- {! n, c9 [
- Serial.println(payload);
: |$ x' O/ [* i" l- _7 c$ L - Serial.print("\r\n");
5 Y4 U7 a6 b2 D$ d' \/ J+ h - return payload;( n& I7 k7 {7 H o' X0 n' o5 m( C
- }
{( e) ?; ?: ]2 ?" _ - } else {
# _+ ~( ]0 {' | - Serial.printf("[HTTP] GET... failed, error: %s\n",
/ P1 @3 B. M, J, K' Q9 A4 f - http.errorToString(httpCode).c_str());' P! q5 i6 B" e5 b! J
- }
, p6 s% ^% Y. [, c4 N - http.end();$ f! O2 `2 B+ @6 R9 M j
- return "";
+ _* c3 s3 ]1 @* S8 q6 m) V# M3 | - }8 P/ ]$ _' U0 N g8 f4 l" v- H' c& R
- }
1 G2 x0 q) d6 \6 B" \ - void mainAction() {' f6 P1 d% h5 G! W
- // 发送请求
* J8 `5 n( \* M- a$ R6 F - doGet("http://google.cn");
`8 M0 {. T) Y5 _ - }
( Q. A& R* ?5 O$ n/ W* }
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