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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)
" l6 Q) n3 ~7 c, e' a# e- #include <ESP8266HTTPClient.h>
) k* \5 Y1 q7 A4 ~. s$ Y - #include <ESP8266WiFi.h>4 @! N" A k. ^
- #include <ESP8266WiFiMulti.h>+ L; x$ t& a% y0 s+ w4 [
- #include <ESP8266WebServer.h>
5 o0 O- X ^8 Q/ u - #include <arduino.h>: U) w8 \6 c+ b) r0 v( T/ N
- ESP8266WiFiMulti WiFiMulti;
7 t. M' }, f3 @- U - ESP8266WebServer server(80);! n! B/ t8 i7 p( ?' }5 n& r* C5 d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 h) K; H! p. k8 p" O a0 {$ T2 n - ADC_MODE(ADC_VCC);
* q T) B8 Z" o( }$ t - void setup() {8 y7 g& {2 p1 u% e! X3 t
- Serial.begin(115200);
0 U- a! y8 B4 K+ L9 @* u' R - Serial.print("\r\n\n");5 R O3 `9 c, f% o" N9 Q" G" z
- pinMode(2,OUTPUT);$ C$ w6 N2 c, J( n1 x. I- B. r, L
- // WIFI
% X# N$ ~ v8 i- @ - WiFi.mode(WIFI_STA);) H- v+ t! t% t$ f v* s
- WiFi.hostname("Sparkle");
! r5 Q4 t" h/ [ - WiFiMulti.addAP("wifi ssid", "wifi password");
. R4 u( T- Z% N% H - int tryNum = 15;
) c2 i/ }2 v5 C3 C2 W) r& d+ | - Serial.print("Connect WiFi");
+ ^) g3 X& o1 u2 z1 [: ^/ X - while (WiFiMulti.run() != WL_CONNECTED) {6 d) R% K- N+ \
- digitalWrite(2,0);
; Y8 X. M H) \+ W - delay(200);
/ `! ?0 q( {: M { - digitalWrite(2,1);
n4 O" O2 O# J - delay(300);7 k5 g, u8 C1 G
- Serial.print(".");3 }$ p& j( K6 h
- tryNum--;
* B8 O( N' O. J' W2 E5 n - if (tryNum == 0) {! Q, n7 e* u& \- n( ]% C3 @1 \$ ?
- // 1min/ {3 F. m6 c+ u6 r9 h
- // ESP.deepSleep(60e6);
2 a _9 p4 Q3 O* M - ESP.deepSleep(0);
8 \/ `& `: j% Y" D, ~ - }/ z. P# l7 l% N; V# m/ T
- }
% B4 Y0 d U0 v i3 h - Serial.print("\r\n");/ g/ A$ N/ ?9 g4 _. F- m8 a
- digitalWrite(2,1);
$ j# f: ]1 P( e; O - Serial.print("IP address : ");
M2 ^/ k- g6 {# J - Serial.println(WiFi.localIP());' S2 M% [$ g) M+ U
- server.on("/", HTTP_GET, [](){; W+ I, ?) C1 |/ \; p s
- server.sendHeader("Connection", "close");
) T! |/ X6 o6 X( P8 t - server.send(200, "text/html", serverIndex);
- e+ Z- W! r N - });
1 N4 Y4 g( _8 d, O8 f9 [6 t - server.on("/update", HTTP_POST, [](){( M* d& I7 @( N8 E8 x8 ^3 K
- server.sendHeader("Connection", "close");: P, a4 I0 u9 b8 g. R6 v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 O7 ]) F9 b! C7 ?4 C, S1 u. P# W
- ESP.restart();. ~; D. @: f+ b/ V' g) ]
- },[](){7 R+ B+ f4 g7 G
- HTTPUpload& upload = server.upload();
2 s% N- r- X4 Q - if(upload.status == UPLOAD_FILE_START){3 o6 L) N/ L2 \" O1 M4 u1 k K
- Serial.setDebugOutput(true);
3 t8 i5 v# V5 U# h0 [ - Serial.printf("Update: %s\n", upload.filename.c_str());: H" g5 R) x0 d4 D* d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; j ?: {5 C: S& }
- if(!Update.begin(maxSketchSpace)){9 g z |& m1 k0 \% M
- Update.printError(Serial);
0 Y# h& C, e& d$ j. b1 b - }# [7 p4 p% I$ T6 D
- } else if(upload.status == UPLOAD_FILE_WRITE){
d: ?! w3 H |4 s. E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
D" D }# B4 ^ - Update.printError(Serial);% P, b u8 E R* V- ~2 A; y9 Q
- }$ o5 A; @# N. i6 @: t1 O
- } else if(upload.status == UPLOAD_FILE_END){+ C3 Z, p1 Z* I0 x b& n7 p7 k' c
- if(Update.end(true)){/ v9 O2 c, [( }. F5 e
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) e4 B+ c2 ?& N* S3 e - } else {
( N( I6 `0 z6 v. B2 S - Update.printError(Serial);
/ Q& B" h) D5 I8 A/ a5 u+ D$ ` - }' Z& m& H7 U; p' w
- Serial.setDebugOutput(false);
( s9 L: M" y4 w1 ] - }: ^' {) @9 v+ m
- yield();
4 d; t: o* q; v- ^/ q% }- p - });$ O' I+ x9 y; I, w6 b9 y. c7 w( H' K
- 3 o( V& b& F9 x. v6 E* E+ `5 h, w9 m
- digitalWrite(2,0);
5 P5 J8 ^$ T1 L - mainAction();
- a# L. t1 w" @ - if (digitalRead(0)){5 M* V' b- ^8 _# o% N! }/ P
- ESP.deepSleep(0);
% Q4 X' ?; G- _) @. A2 `. S - } else {
% ]- @9 w$ I- F1 l5 B - server.begin();# n3 u; w" v9 \
- }
$ ~. _; I, ]5 J7 S) z - }
' H6 q# J# K1 H( D - void loop() {. u0 f2 m3 N+ Q* X
- server.handleClient();
: x. a: ?0 p% V! J0 `- O& s7 K - delay(1);
4 o9 h" B+ c. w/ y4 } - }9 g; |$ A$ Z! V( Y+ d% |! t }9 J( A
- String doGet(String url){! @) {1 h3 C* Q& X& k
- if ((WiFiMulti.run() == WL_CONNECTED)) {
% f6 M6 x, Z) X1 r3 {2 t. _. [/ z - HTTPClient http;/ L3 `7 K r/ k' s
- Serial.println("[HTTP] begin..."); r# e+ Y2 u9 A6 p3 y
- if (url.startsWith("https")) {) l3 H( `" C( k" C. c' S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 {% `8 H" p( f0 g/ M6 o6 w r1 i* I
- } else {
9 h, H7 J5 X% T: `8 l7 q' u - http.begin(url);
. ]* U( M$ V0 C4 H - }% |; g- M/ O6 w* _9 p8 Q. h. `$ b
- Serial.println("[HTTP] GET...");
9 E+ q2 p; X4 _$ P* s6 u5 q* P - int httpCode = http.GET();9 ^( ]" j+ ~& X
- if (httpCode > 0) {
, f0 [8 G `$ I* L0 K c) k - Serial.printf("[HTTP] code: %d\n", httpCode);
; ^0 \ y* y5 c/ K# G5 V - if (httpCode == HTTP_CODE_OK) {
) j$ N( W) D, [7 Y: ~ - String payload = http.getString();- `. l! n: i& d" i, g% Q
- Serial.println(payload);, P9 m3 Q, A9 W. W
- Serial.print("\r\n");/ J" S- \: l$ }3 G; w& Z: \
- return payload;5 J, m9 f% r; u x" F( P; P7 O
- }
) |# s6 e' n/ W5 ?, J& Z" v* _ - } else {! M( g" I" P. Q0 g0 a& d+ _
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ V8 {% t. q7 V2 X8 T0 ~4 i$ v
- http.errorToString(httpCode).c_str());
. _" s5 M; c$ y. J- S - }
( q4 S0 S( x' g1 z" s9 B - http.end();* ~6 u* m8 H, s* J) m: }
- return "";2 @$ I" U( Q2 z, X- t' ~
- }
; P4 J# @/ q' B - }7 P! A& k W* W$ R" f+ n1 r
- void mainAction() {% ]" C: x1 v; r+ s$ {
- // 发送请求) z4 x' g0 L9 i( y& e4 p' W
- doGet("http://google.cn");& f! o( a! v8 h' Q3 b
- }4 i: Y- c. Q" b' R9 J& z f) a* G2 n
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