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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)8 Q' e; h. J& B `; @9 Y+ }
- #include <ESP8266HTTPClient.h>. q5 x1 [* d; Q, w2 y
- #include <ESP8266WiFi.h>
3 I A N; [" G2 H( O9 ^8 Q - #include <ESP8266WiFiMulti.h>
- W6 U$ p( ?( H3 E) G! M. a# J" a - #include <ESP8266WebServer.h>
- S( l5 S Z% I, A( q/ v6 {7 M - #include <arduino.h>. f7 C3 Z; x& |8 {* Y) O
- ESP8266WiFiMulti WiFiMulti;3 L# v! f6 h5 }1 L: z
- ESP8266WebServer server(80);8 G6 |" D9 {) i/ @3 u" x" A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 Y: {3 E- x9 ]/ a) A } - ADC_MODE(ADC_VCC);, h5 r' o& c" C$ ^# h8 F
- void setup() {
. O8 }* W8 q0 I9 c - Serial.begin(115200);
- T7 X- a0 X5 w- a$ A+ G) H - Serial.print("\r\n\n");4 Z( u$ G2 S0 q( S2 E. N1 ]! R
- pinMode(2,OUTPUT);3 a: K8 f1 N+ U, \9 c5 o, Z' T
- // WIFI6 v" y' D* R$ M. J! t
- WiFi.mode(WIFI_STA);. ?' x: H# U: h( ?
- WiFi.hostname("Sparkle");( _, ^6 A- |. `
- WiFiMulti.addAP("wifi ssid", "wifi password");
( `) G# h+ q* v2 i - int tryNum = 15;# U9 A) o" c/ Q X
- Serial.print("Connect WiFi");
1 B$ p, `* D0 q" c7 {/ H5 \% I" B8 a - while (WiFiMulti.run() != WL_CONNECTED) {
5 i0 o+ Y( V; ^: w2 P: R/ ]* c - digitalWrite(2,0);
4 K) x+ x* K, E- z% F6 B - delay(200);
4 i$ S# v4 |1 h! A - digitalWrite(2,1);5 \% c' j* D" `2 S6 N' I. A% R
- delay(300);
. w$ p+ g' W$ k - Serial.print(".");$ H+ A! c1 ~( t2 Q6 }% [
- tryNum--;
% ]( I3 @" ^1 y* K0 s4 i) y t% `3 _ - if (tryNum == 0) {( j$ ?, q+ P4 l
- // 1min
/ p9 f6 I. V6 j. l# `+ J5 g" X2 P5 u - // ESP.deepSleep(60e6);
2 U$ w8 Q, x7 p - ESP.deepSleep(0);9 }2 B3 O7 o- v( p
- }
( V( I i. a$ J2 }0 c - }
$ V- F E6 E- ^& X% w! w H - Serial.print("\r\n");# L" [" s- C" j# q2 k* o4 l
- digitalWrite(2,1);
. ]! G" w2 U8 ~ |% N - Serial.print("IP address : ");
- u- h7 }7 e4 c) n& q - Serial.println(WiFi.localIP());
$ h/ H& ?$ B, ~7 }- C - server.on("/", HTTP_GET, [](){
. s" L# T$ K9 q& H! N5 U& l" h3 v - server.sendHeader("Connection", "close");6 X0 u1 V! U* V+ v
- server.send(200, "text/html", serverIndex);
4 X& p# f- n6 t. J. k - });
& u: r Q3 o7 ^: J( p# _; B/ v - server.on("/update", HTTP_POST, [](){
, @" F( A, ?- _: f9 a& j" m6 f - server.sendHeader("Connection", "close");4 `2 j; I. f7 ]' t5 ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( y: i! p' k3 N" [( T7 m - ESP.restart();
* Y' u! @5 T) w - },[](){0 Z6 d4 X, w9 ?% _" Q7 e0 K! K
- HTTPUpload& upload = server.upload();
; N6 W2 O2 F7 q0 P8 T3 w2 G) \ - if(upload.status == UPLOAD_FILE_START){
; f2 L" y! C( _8 K5 M - Serial.setDebugOutput(true);7 h* q- J- P/ a& j1 J: p& z1 N
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 \$ |3 d. K$ j- B- v7 O. B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( R' j9 I' E. {9 E: V1 d, m: I - if(!Update.begin(maxSketchSpace)){
. Z) ^6 H) N7 r& L3 _ q1 W - Update.printError(Serial);3 ^' H8 _( u" C
- }1 V; L( I* V$ f+ g( o4 P
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ P9 j2 { H3 E) y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 j2 O6 F$ S9 ` - Update.printError(Serial);
4 L. x/ a" D, F - }
8 B; |; H9 Q' d- Z$ i - } else if(upload.status == UPLOAD_FILE_END){2 I2 m/ M/ K0 d; ^
- if(Update.end(true)){! h/ E2 Z# c. t# z' ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
f9 @1 y% b: k b - } else {
% _) t& z* Z# r5 b7 q( e0 o - Update.printError(Serial);+ I1 {) P7 M0 l' \/ \& s
- } {$ ^6 r6 o1 X- i
- Serial.setDebugOutput(false);
7 k4 q/ u' F: P1 E2 T" G6 N - }! r" k: o/ U! J( ?% h4 `+ b
- yield();2 r7 k& M9 B3 l4 ~* C/ ]% V
- });' B W$ B0 F4 a- a4 V1 V
-
5 ~ q' G/ U& ?6 {8 ? - digitalWrite(2,0);5 g5 M, F0 h% [% b
- mainAction();9 Y7 c( B: p' ^
- if (digitalRead(0)){
% O: i d7 R- X7 \& E" s - ESP.deepSleep(0);5 {( k& l1 R% z$ A$ m, X- s
- } else {
( R; b: k, R4 L8 K - server.begin();6 p9 M. Y" L3 {2 [
- }. B6 b2 Q$ N9 {# v) v
- }* g M' ?7 r; |" c; o1 b* v* z' K
- void loop() {# \/ P: _$ [4 d% F' k. z
- server.handleClient();# u- o5 G9 ]9 ^# }3 J2 A% R" m3 a
- delay(1);: D8 G5 ^8 `- S' V# A0 \& I
- }
+ D& [: A# X' \8 `4 Y! I# w - String doGet(String url){: y; j, y7 H% @) Y) I) j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, l* Q2 c1 E* `' ?( ? - HTTPClient http;
0 @4 U6 b, u. Y D% i; G9 T* z0 L - Serial.println("[HTTP] begin...");, A( ?" f0 [0 E& D- @" d
- if (url.startsWith("https")) {
: ^4 B% x: |: r2 d7 X9 B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ c/ d% D/ U/ \, ?
- } else {
: k9 V6 E% `. |" h! r# F+ \( n - http.begin(url);
0 u7 M2 z9 b z6 c% o- u - }2 g2 A5 k0 r7 R0 ?4 a3 n
- Serial.println("[HTTP] GET...");5 P4 S) p- d) k7 V. }4 H: l. [# C
- int httpCode = http.GET();5 e( A5 a1 i c' n, ]$ m8 b+ x
- if (httpCode > 0) {7 ]; S. M4 ?! k4 P7 ]$ h- T
- Serial.printf("[HTTP] code: %d\n", httpCode);3 G' f9 q( O9 r6 u- L
- if (httpCode == HTTP_CODE_OK) {9 O1 R) e* x$ z$ q
- String payload = http.getString();
# T5 b- J H7 s* D - Serial.println(payload);
1 k) J# }4 B" c9 B4 v4 a - Serial.print("\r\n");' p# A8 H' _ ^9 [- v
- return payload;7 M L' d2 \& [, E& C
- }
! V- J/ v" T( H( E+ Z& J, p - } else {0 A; e$ s3 J8 S) E
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 V( b: F$ t( a
- http.errorToString(httpCode).c_str());& M+ Z2 h* c- I% B( H0 u( T
- }
; i2 i. n7 q5 D, m7 ]. `, T - http.end();
# H& ~- T- w; O/ I I - return "";6 l2 l3 O8 B7 H4 o' M
- }
2 N) B$ e6 `7 [) x9 G - }& n8 u+ E# a9 q4 t% M
- void mainAction() {
1 G( N% L. ]7 f: E' J - // 发送请求: m4 Y. n. n: t2 W6 I" M
- doGet("http://google.cn");
/ p! {# A0 }' S, h4 Q3 M1 _3 @4 N - }
& V0 x$ A) ^" [3 n) d' R% y
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