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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)
( P$ X+ x; z0 z* u- #include <ESP8266HTTPClient.h>
1 L- ~- D# L7 u, X- d3 N$ m* K - #include <ESP8266WiFi.h>$ R) K% n. X5 X& n# u2 _1 Y
- #include <ESP8266WiFiMulti.h>
9 I1 D4 ~4 K5 g& E - #include <ESP8266WebServer.h>/ x) o# \' ]+ \
- #include <arduino.h>4 j) ?. T) G, W7 w/ Q- u1 b7 n
- ESP8266WiFiMulti WiFiMulti;
0 j7 S4 Z9 `* X' E' g" p - ESP8266WebServer server(80);: M8 ]" w( e. a$ k; b
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 S5 z+ O, C" w" n2 f3 S
- ADC_MODE(ADC_VCC);
8 K$ j C, Y+ E& A/ A% |# u - void setup() {
4 f* }9 O2 I- u; N7 X - Serial.begin(115200);/ ~9 N0 L* a0 I! ]8 @9 A" y7 v% M' x
- Serial.print("\r\n\n");$ t! E% N* ~& x, c8 c6 G" \ D& n
- pinMode(2,OUTPUT);
3 B5 F5 c( p6 m2 G( u2 Q$ y - // WIFI2 y8 T3 `/ T2 {- k
- WiFi.mode(WIFI_STA);
2 H; o$ z9 w: T L - WiFi.hostname("Sparkle");
" f% U1 H, v( C, I* l1 h - WiFiMulti.addAP("wifi ssid", "wifi password");- o/ S2 f3 d' j; H3 g J
- int tryNum = 15;4 p# n v7 l7 N8 J' U o
- Serial.print("Connect WiFi");
: M* z( w6 [/ O - while (WiFiMulti.run() != WL_CONNECTED) {
$ T7 w* Q8 Q' q! p8 M - digitalWrite(2,0);
& N( I' v# E ^0 H! _$ h! p0 G - delay(200);
8 x) l9 ? B# Y7 w8 ? - digitalWrite(2,1);& o: y$ E" y% z2 t9 v
- delay(300);
, s8 y- p- {1 w6 T" o# c - Serial.print(".");
! n" u$ F8 O7 y$ G/ j, \ - tryNum--;$ u; P& { Q# p
- if (tryNum == 0) {, n/ [' v7 `+ u" J3 F; ?* v
- // 1min
t" h# p0 B, Q - // ESP.deepSleep(60e6);' S4 I6 y! U, K
- ESP.deepSleep(0);; Y. U" m* a7 z$ Q4 b
- }
# i/ W5 n: i) O G, A( R" h - }6 F+ |9 z/ k1 \8 h. z5 w6 o( E
- Serial.print("\r\n");
7 G" Y" \0 N- A# c) b - digitalWrite(2,1);" ^6 K2 K9 U5 N1 m6 a
- Serial.print("IP address : ");
) _4 i" h0 g9 O4 I) } - Serial.println(WiFi.localIP());5 j& R7 A0 p: N4 {
- server.on("/", HTTP_GET, [](){
0 J- I" q- J# T5 x5 p2 _+ f - server.sendHeader("Connection", "close");
! [, M, q" C$ J$ O - server.send(200, "text/html", serverIndex);
: J6 ?- {" t ^" S4 p - });) ?) ?- w% ~0 G3 E; ~) j! b
- server.on("/update", HTTP_POST, [](){3 O1 m% q0 ?6 k8 A3 z X( {0 q
- server.sendHeader("Connection", "close");
1 C+ p3 ]8 w9 I# c - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ I6 G5 B% v; _. ]% h$ D - ESP.restart();2 D6 @- {; N" u/ A0 l
- },[](){
* I @* f7 x# f, \" [& ^ - HTTPUpload& upload = server.upload();) u- V, w# H! E& X/ J
- if(upload.status == UPLOAD_FILE_START){
& H& n. O f1 i; c( ` - Serial.setDebugOutput(true);
( y7 a" C) q: V* q& r0 `( k3 u - Serial.printf("Update: %s\n", upload.filename.c_str());) \( f" I$ }9 X7 L
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! X6 W4 G8 @ K' Z+ m/ C: x7 E - if(!Update.begin(maxSketchSpace)){
+ o6 C, q7 r/ ~7 }7 Z! Z% J$ [ - Update.printError(Serial);
" e5 w: G+ H1 M5 z/ _ - }# V# c0 n& h( b
- } else if(upload.status == UPLOAD_FILE_WRITE){
2 c( J1 _1 J% J& q! C* t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ J% d0 Y0 W0 A- V8 o I* O+ { - Update.printError(Serial);" |& j7 o( A/ \) N) ?1 V5 d
- }* e& E4 F9 _9 g) D9 }5 m
- } else if(upload.status == UPLOAD_FILE_END){
) v* P, b) C8 H" E$ f/ j4 v( ? - if(Update.end(true)){
4 L: g* ^8 L+ c- i( r' W9 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 k! M2 ]" ^. y7 D% a% H; K# e+ e% }6 l
- } else {
6 w& o' |2 r7 Z7 s - Update.printError(Serial);- z9 G. ^, h& e6 a9 I$ s8 [
- }; r5 z1 L& G9 ?, t# @1 m
- Serial.setDebugOutput(false);& T' v2 [* D) f( o( z+ d+ a
- }. S8 E. ^9 J0 n8 s6 q7 F- D
- yield();
: J- C. W% G8 D" d8 K+ R0 G - });
6 W0 H2 Z5 G+ S( d& O* X -
1 T% U* e! j) a8 f- a - digitalWrite(2,0);
1 N: B2 i: O2 ?- G - mainAction();$ F$ y0 T: ]+ _
- if (digitalRead(0)){
2 |( {5 u$ X; |$ E" R7 m4 n - ESP.deepSleep(0);
& O( e! E1 Q5 v( b' O. o - } else {
" u9 Q8 M# F p# `. S - server.begin();
: R$ k) w* A2 d - }
0 a- ~8 J4 R3 x - }# ]" O3 o: T! z( |) {8 {0 D# V( X
- void loop() {
# A5 \+ H/ R# \: u - server.handleClient();
; ^ }' U; g: R, M - delay(1);
# c* M2 G( |9 j - }
6 S9 j: k! R* H8 O0 x - String doGet(String url){5 a# W2 A2 t8 j" G; D1 g
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 S4 j4 Q2 r- R, w0 @ - HTTPClient http;
$ ^' Q$ Z4 V, ^' I - Serial.println("[HTTP] begin...");
- @8 ^7 B; L2 ?3 {5 Q - if (url.startsWith("https")) {- R) B4 ~5 M0 x, ]
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& W3 I' S. @1 B5 G4 ]' n
- } else {: [; `* H0 |, i, ?# ~4 F5 e
- http.begin(url);/ o x4 d+ P3 J+ z) S* ?+ z, O3 c
- }
- f' Z0 e4 \9 i0 \+ d# p - Serial.println("[HTTP] GET...");! z. f5 t- i0 N* r
- int httpCode = http.GET();0 }3 Z8 _: Q7 Z( a# n+ A5 J* W
- if (httpCode > 0) {, w' a' s U/ ]1 G% p
- Serial.printf("[HTTP] code: %d\n", httpCode);
0 j4 E8 {8 j$ E G9 j2 E! a3 M - if (httpCode == HTTP_CODE_OK) {" |! B5 L3 k! n- D
- String payload = http.getString();5 [9 G" _. }" P: X
- Serial.println(payload);
* o+ N4 h+ X& [6 l - Serial.print("\r\n");% J9 j6 d M) o1 Q' C6 P) `
- return payload;
1 Y6 f' X- O& s. R9 Q - }* w( H7 W( W$ D* o4 d, N; ~
- } else {+ j0 K7 X+ {7 y/ d1 P# N/ B
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 [* V; z7 m' ?$ n- ^0 f6 z
- http.errorToString(httpCode).c_str());
+ S' L+ F6 r: w7 C - }+ L+ N( @* S. l8 f/ T; W
- http.end();
- |; S3 G9 G8 o# A+ f - return "";1 A1 j8 n; R1 I$ L! m! ~
- }9 b+ f* T1 w* O1 k
- } O+ f: ? q; `8 T" C( D+ q
- void mainAction() {
. O* c X" w: o0 _% [) x! L0 ^ - // 发送请求
+ ?+ m( w& J8 M' H1 d, D - doGet("http://google.cn");
, u# u, c- r* ]* g - }
$ [: F' J' h9 [* ]; _. _
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