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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): _2 H- j( ]2 B8 _
- #include <ESP8266HTTPClient.h>% O, j: G' L# V: ^, F! A
- #include <ESP8266WiFi.h>9 x( e D6 M, M4 N* r0 P! m) K
- #include <ESP8266WiFiMulti.h>0 F8 H* i4 }' J g
- #include <ESP8266WebServer.h>1 t0 b4 O' q; ~2 T! T/ T0 s3 t
- #include <arduino.h>
: Q! u% R8 r: ]& a. B6 |* t! k - ESP8266WiFiMulti WiFiMulti;. ~- j1 x7 J2 g# g( P% ^
- ESP8266WebServer server(80);
8 @; I5 t( u% Y2 i' X! @ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 ~1 n; e# I5 l$ t; R) S - ADC_MODE(ADC_VCC);
1 }8 p) I7 ?1 R1 j2 b$ K0 G - void setup() {
9 ?% |8 q3 e2 x! c8 p - Serial.begin(115200);
: \3 j# b! q! ?* }# i4 L - Serial.print("\r\n\n");
, _3 ?7 ?) O9 q0 W - pinMode(2,OUTPUT);; F% H( P- U- j* ?+ b1 Y3 D% N
- // WIFI
% K) o) M- e3 M7 R/ I4 ? - WiFi.mode(WIFI_STA);
* e# e$ F* `" p* ]- P - WiFi.hostname("Sparkle");
8 H: F( ]* `+ N9 m, R' n - WiFiMulti.addAP("wifi ssid", "wifi password");' c y1 O& }5 t$ I
- int tryNum = 15;: Z; M+ u0 H( F( Y7 }2 S1 U4 k
- Serial.print("Connect WiFi");
4 Q2 c2 j5 k9 ~& @3 Z - while (WiFiMulti.run() != WL_CONNECTED) {
) j% r9 h) w; I( | - digitalWrite(2,0);
f/ n ~; a. p$ U+ g' A w1 H! @7 _ - delay(200);6 L7 K9 _/ V: E; @
- digitalWrite(2,1);3 I; {" N0 F( I' M& |7 P9 W# E9 K
- delay(300);; w) {- U( ]9 c
- Serial.print(".");! |5 o* Y( R/ C6 Z) F
- tryNum--;
9 ^% C9 D1 c1 B% ?3 B - if (tryNum == 0) {
. T( T* I! F8 s - // 1min
) D o$ ] _1 s - // ESP.deepSleep(60e6);
/ I/ U: l; {. ^' j - ESP.deepSleep(0);& j" g2 y7 R8 E/ D. ]% v6 y2 }
- }
# ~8 I& W+ O: N3 `' Q9 q3 [ - }
4 Q2 X" I6 h8 b2 P* s& c. |# N - Serial.print("\r\n");5 ~4 @ o% T8 p6 ?9 S
- digitalWrite(2,1);! Y4 F3 `1 ^( i5 S( ]$ |
- Serial.print("IP address : ");
1 ^+ O4 \& {; c - Serial.println(WiFi.localIP());0 @% N( g: O4 h! m
- server.on("/", HTTP_GET, [](){* E; J* u( x+ c6 Z2 V- L
- server.sendHeader("Connection", "close");
! h; G2 p+ G4 V( c$ { A - server.send(200, "text/html", serverIndex);- ~. O; _! F$ I0 Q9 e, L
- });
0 |! d3 Y/ }& ]1 w! x - server.on("/update", HTTP_POST, [](){: f4 S7 q. f" _
- server.sendHeader("Connection", "close");9 `3 {4 R0 ]( |$ ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% ~$ P( Y6 E9 _5 N
- ESP.restart();! O+ ?% D" P# [ @/ J
- },[](){
9 }, Q3 ~& j! u F6 ` - HTTPUpload& upload = server.upload();/ ^0 z+ U. O! }" D" E1 k1 Y# V
- if(upload.status == UPLOAD_FILE_START){3 ?; u7 L) v/ ~, m" c
- Serial.setDebugOutput(true);
! U" y1 o% A% G3 r8 j) O5 g; ^- _2 `+ ? - Serial.printf("Update: %s\n", upload.filename.c_str());) a1 ^# I% v% k8 d$ T9 k" W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: J& S6 m- p5 Z: y/ v - if(!Update.begin(maxSketchSpace)){5 i, {2 r$ D) c' D& p7 u
- Update.printError(Serial);7 m' \3 Z8 `, O
- }
W8 r- H6 {+ D3 T - } else if(upload.status == UPLOAD_FILE_WRITE){
, r( B$ x v1 R* _) B! N/ F2 ?0 i. E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& P4 b8 c4 y( _5 s" e6 s - Update.printError(Serial);
7 V7 i9 F+ V$ @& b! X - }+ ]8 h2 O+ X3 {+ m
- } else if(upload.status == UPLOAD_FILE_END){1 }& y, G* Z) Y
- if(Update.end(true)){+ e! }! z( Z6 A5 y5 j; i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' x/ T" \. ~7 a2 z, U" w5 g1 c - } else {
2 a. J" X. o Z' k4 S4 p6 O% r - Update.printError(Serial);
K& B; R) A) B - }
4 p9 q- w# M W4 s9 k - Serial.setDebugOutput(false);
; o( R- ^, l9 ? - }0 H* q) E- r% M. s( n$ {# W
- yield();- i$ |1 t$ y3 m. c
- });
6 Q0 Y8 l- J r2 {3 e9 H$ i% z -
) D- P- @7 K9 W) q - digitalWrite(2,0);
- Z0 V7 j6 o. U - mainAction();
$ F! Y! p \& v9 n - if (digitalRead(0)){ T8 A& J" C4 F$ @
- ESP.deepSleep(0);
8 ^$ C, L$ W8 T ~7 x7 p6 J - } else {2 C. @' B7 f1 }9 l
- server.begin();: B0 ?' d C3 d3 i5 ^
- }$ {4 l/ N6 Y3 w1 v* t. H3 c% h4 x8 V
- }
; J$ T+ ]1 k& y4 O' W8 t) h - void loop() {( _, p4 p; f% d" W' P% i
- server.handleClient();
5 K) z; I) U; B) K- j - delay(1);
' P; \6 S ?8 E" A - } @0 M7 K! R4 G- O) F
- String doGet(String url){
) i! d8 }- E+ ?7 }; I - if ((WiFiMulti.run() == WL_CONNECTED)) {) ]7 @' x# q! A) {3 J
- HTTPClient http;
9 o; @$ x% X+ @& u& c) {& ~( z2 w - Serial.println("[HTTP] begin...");
# \( T# s" X6 G* m - if (url.startsWith("https")) {/ L: U' G% y: J. C7 B! w/ _: c
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. I* e+ l- k9 f# c" y; t
- } else {1 o" @7 T4 [( J( s
- http.begin(url);
9 l, E7 [4 } t# V. G5 K$ L: c2 X - }9 X' g, D/ m, ^+ O& D
- Serial.println("[HTTP] GET...");
. ?. H$ G9 e4 |8 x3 M% K# L - int httpCode = http.GET();+ E4 u* v5 Z: v" a3 G& w6 K
- if (httpCode > 0) {
, }5 b u+ C0 t8 Y# ] - Serial.printf("[HTTP] code: %d\n", httpCode);0 a' L3 z- g' N# D" R
- if (httpCode == HTTP_CODE_OK) {
# ^& i& R5 g8 f - String payload = http.getString();
3 E0 I$ j, p4 y: L, K' B* r - Serial.println(payload);
3 u4 J' s: G! D# [. U9 n& Q - Serial.print("\r\n");
6 B- E2 W+ {& T - return payload;
. e' x) i* _' Z: b+ N' u - }+ t+ P- }% h0 j0 s) d
- } else {
& c& P3 @8 q; l3 g$ M - Serial.printf("[HTTP] GET... failed, error: %s\n",$ L1 |5 v- _( ~/ ^* E7 ^
- http.errorToString(httpCode).c_str());5 i# r. F4 y6 Y6 X, p& j' ^) ^' a5 \
- }) f5 ? ^* D/ ?7 ~
- http.end();
9 ^1 E3 G8 r8 p/ Y; Y! L* u. I - return "";- }+ d; c! B& S' u
- }3 i. F6 f# E+ L# m# X
- }6 g6 X) F& ^0 x# m/ D* N
- void mainAction() {
2 x- e& `/ d/ D! x7 A0 ^5 {) C2 U - // 发送请求( o( H; D$ N( x) U, W( A
- doGet("http://google.cn");& ^& @# p" H+ u9 @! \
- }$ n8 e6 w2 O& U; N' c3 I; r& f. O
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