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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)
! I' G8 O) N; a0 i- #include <ESP8266HTTPClient.h>) f: \/ s! _7 b, [, I
- #include <ESP8266WiFi.h>" L& ?+ g$ e4 f1 N) `/ L. P- b6 h' n
- #include <ESP8266WiFiMulti.h>
% b& U/ j. Y2 G! O A1 l. R) e - #include <ESP8266WebServer.h>: z; c- l% T2 O/ p; X4 g7 Y5 q
- #include <arduino.h>
( ]5 s) n4 q! _6 ]1 ] - ESP8266WiFiMulti WiFiMulti;0 a" E6 U* r" G f+ A
- ESP8266WebServer server(80);
7 J9 T/ p. l5 k3 @ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' R( S' ^, R! j1 b. B+ a - ADC_MODE(ADC_VCC);
! L7 L) J* G9 R3 V, u. L - void setup() {8 t" P& `* v6 P# m/ ^6 x
- Serial.begin(115200);
! Z/ n+ F3 i; J: N - Serial.print("\r\n\n");
% Y4 s# t* b: G9 A! b - pinMode(2,OUTPUT);- f2 z$ k ~1 s7 ~ W% n/ T. Y
- // WIFI% m5 {, h. l% H. i! D
- WiFi.mode(WIFI_STA);1 V H$ a0 Y/ z' @: G% u- @& R
- WiFi.hostname("Sparkle");6 ^. l6 ? o/ m
- WiFiMulti.addAP("wifi ssid", "wifi password");- R: l" L5 ]' p
- int tryNum = 15;
& K% q# o9 J0 k8 c4 T1 V# r0 F - Serial.print("Connect WiFi");
* w4 b- e) Q. y4 M - while (WiFiMulti.run() != WL_CONNECTED) {/ W7 O/ Q9 u! [- o
- digitalWrite(2,0);
4 j1 V( l! l4 C: J - delay(200);# q. U1 v# ^7 s
- digitalWrite(2,1);8 G$ ^5 b- i) I s& B
- delay(300);
% D& G# ?& Y9 L0 S; E - Serial.print(".");, F" w# j8 L7 D8 r
- tryNum--;( O3 o, X7 a4 b# _
- if (tryNum == 0) {$ F, s; @) @$ W& c) A9 B. l, F
- // 1min
0 O+ P: A e; R* k - // ESP.deepSleep(60e6);
& V: j# F) v. @ - ESP.deepSleep(0);
) {; c; |9 m- i: C5 y R# q - }4 j, ^4 ~! i/ U5 c. \: ^6 h. R7 q
- }
2 f% n- w! \' x" d$ Y - Serial.print("\r\n");
6 f: o' o4 j5 z* s0 |9 X& `4 [5 h4 C' ` - digitalWrite(2,1);
: r& \3 k; c* W$ L - Serial.print("IP address : ");
" X( j' R0 c1 m6 B* [$ C( [ - Serial.println(WiFi.localIP());
, [4 H& o4 G2 t r& Q, Z" r0 N - server.on("/", HTTP_GET, [](){
" O. E. m7 I$ k6 O& D7 b/ U - server.sendHeader("Connection", "close");( O2 y! s4 I% ?" N% w: K
- server.send(200, "text/html", serverIndex);
9 n4 f& l$ O% X# T - });
; k; X" O) ^# c& N- E0 L" ^ - server.on("/update", HTTP_POST, [](){
6 m3 P! ~; q6 p8 P' a' Q - server.sendHeader("Connection", "close");+ a/ E/ c4 M$ T/ E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' d/ G2 f, M. w7 p, Q, f5 P
- ESP.restart();
6 P4 l: l. ^: y' b$ A" `' [ - },[](){
! N4 q+ @5 s9 C( N6 w7 d4 J" {- k - HTTPUpload& upload = server.upload();
9 Z* v& h$ I/ \! ?7 F: N - if(upload.status == UPLOAD_FILE_START){
2 z" h3 W! ]$ ~* Q- `! e - Serial.setDebugOutput(true);1 W% f- F) I+ i! ]8 {* |
- Serial.printf("Update: %s\n", upload.filename.c_str());$ k q# U6 B7 ?3 G9 _ s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( Z1 M+ B, z! _ - if(!Update.begin(maxSketchSpace)){( f5 v) V" ^6 u7 |: s
- Update.printError(Serial);$ b0 A3 U' T* l, f5 p
- }
9 {3 H& D( B/ U u+ j# Y8 y# o* J - } else if(upload.status == UPLOAD_FILE_WRITE){
. `3 y4 Y+ y1 v% Z& `3 z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' E( Y% [: s# F/ w a3 c6 I1 C
- Update.printError(Serial);/ J+ U! ?8 @0 Q; l# @5 S, B8 b
- }* c( ?0 Y/ f. m2 r: j( |( p
- } else if(upload.status == UPLOAD_FILE_END){3 U) d- U/ Q8 d+ F# ^
- if(Update.end(true)){
6 N( ^% V" @3 O$ l& F7 u/ ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' R7 v6 ` e+ r" g! g2 g0 @ - } else {0 w1 J ~( }; n2 R, l9 h: g
- Update.printError(Serial);1 P6 c {7 W1 @" k3 c: E
- }
% E# [% c- } P J' {& {7 p - Serial.setDebugOutput(false);
3 L& C0 q& s) O% H* X - }9 ?+ ~2 m- |9 y: {- @% A
- yield();! E* K7 h# X) i! }/ o
- });+ C6 t) H& q9 ~5 ?& D7 H
- 0 u- q6 [6 \9 I) o( Y: c! J
- digitalWrite(2,0);
2 k% L$ t1 F* L/ _. f1 ` - mainAction();+ S9 D! R+ @$ \
- if (digitalRead(0)){) w" R! I( V( U, q! d5 u% S
- ESP.deepSleep(0);
2 r, R# Z7 `/ M - } else {
% ?" `* k' x3 ]- A8 P - server.begin();6 Z' |, e8 O2 i
- }) i8 w7 j; d ]& ]) F+ p9 j
- }
5 k6 A, Y7 j I* q+ Z3 l2 b - void loop() {
- y! C( v5 w% d" _) ^$ G% e - server.handleClient();
& `1 }; [4 o# i6 W - delay(1);
4 @& p" C% X& H* a: {6 ]' @, F - }
& i. J4 e5 _; N1 i% U - String doGet(String url){
2 s5 `% H- S, Y2 D - if ((WiFiMulti.run() == WL_CONNECTED)) {
' @$ k, c2 C. c8 Y3 b - HTTPClient http;
% w0 d* A5 D6 b0 T - Serial.println("[HTTP] begin...");: } Q7 E# c) C" x. D* p
- if (url.startsWith("https")) {
( A" i4 a5 T [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* i$ r" S' v5 d8 q$ n4 ~. [- Y. t - } else {
5 M9 W$ ^- E5 ]: ^7 J" q - http.begin(url);
/ t, P' A0 n- e6 p6 ? - }3 K7 o1 h2 n$ E
- Serial.println("[HTTP] GET...");- d; j* d! t$ E8 N# J! l1 b6 H7 L
- int httpCode = http.GET();6 }% B& R, {# C/ T
- if (httpCode > 0) {
/ r3 F# ~* t! e8 ?/ Z - Serial.printf("[HTTP] code: %d\n", httpCode);
8 g5 ~( |9 o9 l- A! Q - if (httpCode == HTTP_CODE_OK) {0 _2 s! l% c& E: G. m
- String payload = http.getString();
. G F, h: N) M6 A - Serial.println(payload);
2 R: ~3 J3 t, z - Serial.print("\r\n");/ y5 P1 n( }, U U! U
- return payload;
5 I- \- T& F2 K3 Y# {. N5 ? - }
) V; S k" I+ d/ G3 M7 t& f+ U - } else {% }" w( P/ v- N' k4 C
- Serial.printf("[HTTP] GET... failed, error: %s\n",4 M" |+ C4 z0 A3 i* b7 D) S) D: C
- http.errorToString(httpCode).c_str());
& y- x+ {2 Q+ h5 j6 v0 c+ d - }1 Q/ k0 m B. \. h1 Q/ v! N. O9 W% d
- http.end();
% }# p# S* I$ ^$ y. y b1 J - return "";
' k- |4 c! l. ^8 e5 ? - }
; P, I9 X% n Q+ {/ ]# S# b - }( r& x1 D, m- w& q& l
- void mainAction() {
5 }5 Z9 u" Q+ ]$ O& |; P3 a* k4 ^! |$ S - // 发送请求
8 [! @( v0 P5 o& m - doGet("http://google.cn");
; Z: {9 \1 g0 q" x - }: ?) s5 H3 d3 C8 e
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