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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)4 K' W* z' R) F6 K
- #include <ESP8266HTTPClient.h>3 }! T1 }0 n3 _& N7 w0 q
- #include <ESP8266WiFi.h>
5 [' |8 @2 j9 t2 o/ h; W - #include <ESP8266WiFiMulti.h>
( c- |# ~7 C* N/ E" `( {( _ - #include <ESP8266WebServer.h>
# o, }; n7 X7 E a6 G( a - #include <arduino.h>
) F8 z1 a% j$ L7 ?" H/ T - ESP8266WiFiMulti WiFiMulti;
: z2 _3 m7 s$ x+ X! X, H: v - ESP8266WebServer server(80);/ _- z y, y: K4 _4 N7 z6 s+ g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ n1 C4 { d1 J5 z( B4 F - ADC_MODE(ADC_VCC);) v* y( j. _8 O: f3 q) {; I E. V; T
- void setup() {
4 G# U9 y( l, o2 H9 P, h - Serial.begin(115200);
8 j( w- _' t& h" X - Serial.print("\r\n\n");* j3 L9 U2 I2 h- T: l
- pinMode(2,OUTPUT);7 P! i# G% h3 x
- // WIFI
+ g' _2 T9 x5 |% u6 d; B9 h - WiFi.mode(WIFI_STA);
7 X; \: k: Z7 k; k4 d6 ^ - WiFi.hostname("Sparkle");' n1 H: K; V; w; u/ f0 }
- WiFiMulti.addAP("wifi ssid", "wifi password");
; |! f: J$ ^& P, x& P4 R! {* @ - int tryNum = 15;% o) C# g* @8 y
- Serial.print("Connect WiFi"); y& S* f' H' E
- while (WiFiMulti.run() != WL_CONNECTED) {
. |' A7 ^7 q+ }0 z - digitalWrite(2,0);
. d1 F' O& t! W' H& c9 v4 U& _( r - delay(200);
2 C3 }6 {$ C! ]8 r5 ?4 a. e' ?# F - digitalWrite(2,1);! H2 z+ U" r5 W6 l4 W
- delay(300);9 E' \. ^2 I3 T$ }- ^( v, G5 Q- R4 @
- Serial.print(".");
$ k: m! o% G' ~4 Q - tryNum--;
& z* A5 M( R2 |' D6 Y% ?1 w: h) t - if (tryNum == 0) {$ O5 z4 R# x) z/ c9 S1 i$ Q4 T
- // 1min
' A! r) @6 r) Q: F1 k - // ESP.deepSleep(60e6);5 o. G8 V0 h1 \/ L P+ b) d6 a
- ESP.deepSleep(0);
+ \5 W( i1 s3 I0 T: q6 b/ S* J1 o$ L - }
& j& Z* m2 s9 N8 j4 a8 I2 R - }$ X; E" V) K( ?* T5 F' H
- Serial.print("\r\n");
+ @: m! ^: t% i9 x K$ L2 E - digitalWrite(2,1); ]- Z* o5 K$ n1 d+ r: E$ ^
- Serial.print("IP address : ");* |+ l% j0 M, J( I) C6 R
- Serial.println(WiFi.localIP());
4 Z# w- T* Z# J5 n D n! \ - server.on("/", HTTP_GET, [](){
% a: }. C b- Y% Q! F2 o - server.sendHeader("Connection", "close");
; s4 b+ F' }- o - server.send(200, "text/html", serverIndex);
* f# K/ W( l' X1 J1 u, r9 v, H - });: I4 n) Q" I. l: ^
- server.on("/update", HTTP_POST, [](){+ S7 U: _! Y+ ], J
- server.sendHeader("Connection", "close");
1 Z9 z, V0 D, `$ \ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; j8 R( G5 Y+ K8 ?- I, d
- ESP.restart();
& ^* V& B6 M4 k8 @. k - },[](){/ U- ~: {+ r: y( p
- HTTPUpload& upload = server.upload();
) j5 g! k% y( V" U& l2 D - if(upload.status == UPLOAD_FILE_START){
8 a0 D3 W4 o3 f6 i$ l( h - Serial.setDebugOutput(true);5 f5 h& J4 X# W- @5 i
- Serial.printf("Update: %s\n", upload.filename.c_str());' n/ u8 v3 X1 ~6 E# H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' e( {- d: t, H8 V - if(!Update.begin(maxSketchSpace)){# F1 N, i& u7 O- q' x i: U0 Q
- Update.printError(Serial);
, ]" r2 [. g9 c - }/ q' q7 L& v% T$ Z* m
- } else if(upload.status == UPLOAD_FILE_WRITE){* e# R/ N# K, r
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( u' W/ V4 }- | - Update.printError(Serial);
5 p9 Y/ W2 s0 u x" F - }
+ p( v! A) f. W& o - } else if(upload.status == UPLOAD_FILE_END){
) g: j0 \: {9 ?2 x8 W" n - if(Update.end(true)){& a- s) s% r# y, H' ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# l1 J- I* f2 ~! r
- } else {* b5 A1 O9 G7 W8 L# l0 F" u
- Update.printError(Serial);
( g5 J) Z& ^! o* N3 w4 t - }
2 M! N8 k7 @) _: l% T$ s8 o - Serial.setDebugOutput(false);1 k8 f. T4 s4 t
- }
' C. x4 J# E1 U6 V( @+ x) W8 O - yield();- y3 ]- K9 c6 U: _
- });
- U. i' Y" w$ S! s: d5 K% V - : D7 R- t% b2 u4 y$ L9 R3 C) U
- digitalWrite(2,0);2 O: c7 ~" p# M- J3 e
- mainAction();
, |4 A+ k8 u; p) G0 q$ c1 h - if (digitalRead(0)){
! s: m% Y/ Z3 f" T, B1 M - ESP.deepSleep(0);
x: {6 V5 F0 F( [6 k# G - } else {
, E+ ]' o" Z# [# d( {5 s' C - server.begin();
/ H! h6 j& \+ W9 x - }0 |+ s$ |$ m3 }! ^: y; y; Q \# N! J1 A
- }( T8 I& f3 c T% a8 n
- void loop() {
& T9 U* m: x. L- J( h" m* R" s - server.handleClient();" R( Z' f+ V8 S6 K
- delay(1);
" P* C( }* X* O o. {( } - }
/ u5 U- P( a, n0 T0 N - String doGet(String url){
9 ?; j" D, ^8 w+ X; @, V; J+ q& u - if ((WiFiMulti.run() == WL_CONNECTED)) {
: k- B* `1 |( ?$ E' x& }. ~' Z7 [ - HTTPClient http;8 y8 H- e$ I% }6 }
- Serial.println("[HTTP] begin...");; V( p- q8 \; H
- if (url.startsWith("https")) {
3 u8 ^8 ]8 f! m5 \ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ z, l& T/ T+ U- w - } else {
& Y0 t. E$ D8 b - http.begin(url);( t u, O# H! S% W/ W4 `+ K! R8 C
- }
' N2 \% T* ^+ g* ~+ u' ^ - Serial.println("[HTTP] GET...");
3 Y1 |5 E1 e& z2 Q - int httpCode = http.GET();* A# D6 t) H$ m% s- Z& M* ]: D
- if (httpCode > 0) {
+ O' l7 g i3 D( f) T' h1 _ - Serial.printf("[HTTP] code: %d\n", httpCode);' x- I2 f& z* w& N ~8 c3 b
- if (httpCode == HTTP_CODE_OK) {8 \* P3 k0 X- b( x9 n
- String payload = http.getString();
$ }! R# ]9 D3 t - Serial.println(payload);" V* g, c) Y3 L- v8 D- G# I
- Serial.print("\r\n");$ L3 B' F# L, R
- return payload;
/ B* k4 F& z2 T$ F/ }: Y9 h- Y - }0 n7 A4 ?* x7 {8 v* B1 K
- } else {2 ]6 Y( c6 f" _( t2 O1 c% ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",' T0 i$ \# p( ~6 N) T" `% T+ `5 t
- http.errorToString(httpCode).c_str());% E1 l$ R4 }/ A& J/ f/ ?) a
- }
+ @8 t. x d! d! P! ^! @ - http.end();
2 {' V( d# Y4 k. Q - return "";
# u$ [* |8 g4 q# |' ?( N - }
4 f3 M% l9 L; W8 @ - }) U5 z& _. a# T% U% p
- void mainAction() {* q2 n2 x- D4 |7 L0 m. a# m
- // 发送请求+ G# A7 z$ ^& E U: p- Y1 f
- doGet("http://google.cn");! t/ i5 W. Q/ `. g
- }: y: E7 a+ a/ N" j8 Y
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