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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)
' N, m. P( a+ v7 F- #include <ESP8266HTTPClient.h>
. F/ {$ N; p) B; c. O - #include <ESP8266WiFi.h>
, P# Y$ m2 S7 O - #include <ESP8266WiFiMulti.h>
; _/ }' e) b: ?% y2 D - #include <ESP8266WebServer.h>
* j. f& Y: J0 e. g- `0 U- W - #include <arduino.h>/ Q4 N$ Z" W# s) X* Q
- ESP8266WiFiMulti WiFiMulti;
! C4 l6 _# v6 ^2 A - ESP8266WebServer server(80);0 v/ o0 I3 t7 D3 B4 C& h( `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! q2 X% m( T$ C* W - ADC_MODE(ADC_VCC);
( z* K! M% x: X: y2 J% N - void setup() {
[) v$ Y5 E! R6 x7 W/ C# O - Serial.begin(115200);
' i% {. S. \# X- L9 s - Serial.print("\r\n\n");6 S, @( l8 o( e8 W, e
- pinMode(2,OUTPUT);- [; R' D* D+ m0 z
- // WIFI3 x( u2 L1 U( K0 Q* U4 O
- WiFi.mode(WIFI_STA);1 n7 q* U) Q' g6 \% g
- WiFi.hostname("Sparkle");2 }* P! a4 c$ p2 l7 ^
- WiFiMulti.addAP("wifi ssid", "wifi password");: l3 z4 K7 u9 K7 z0 T0 F6 g
- int tryNum = 15;9 D- E3 J9 A" x8 I2 q
- Serial.print("Connect WiFi");. N- f+ I1 U6 b' q
- while (WiFiMulti.run() != WL_CONNECTED) {* e! J; d5 E5 k0 p( [
- digitalWrite(2,0);) e5 @4 T: Y( W& }3 `9 f
- delay(200);
, |: G: r' j: E, u0 p3 k - digitalWrite(2,1);
) \, Y+ J" _' D: Q - delay(300);8 K* S: g; E' y+ x
- Serial.print(".");2 g" K% H; f9 A
- tryNum--; W2 |, l+ x" T5 S. ]/ K# H& Z, H
- if (tryNum == 0) {4 f3 z6 \6 ^. L3 E/ P
- // 1min
# y3 Z6 w# n' F) o+ J5 X2 i - // ESP.deepSleep(60e6);3 S$ F& ^, g2 L
- ESP.deepSleep(0);& O% \8 J! v6 J/ y0 I' |# ~4 q
- }0 L3 v, A* ~8 P# i. }3 \
- }
I- b0 w6 s0 Q7 U: j - Serial.print("\r\n");) K) s( @# X ^, M
- digitalWrite(2,1);) c" e7 h- d) w$ {7 ?, W. C
- Serial.print("IP address : ");2 X$ z; ?0 l( S' K" Z7 y
- Serial.println(WiFi.localIP());
: O! ^* @; _( F2 _4 Y$ X1 _ - server.on("/", HTTP_GET, [](){
7 s1 B. e4 ~8 Q) b; \4 j+ [ - server.sendHeader("Connection", "close");! `7 o5 }0 q- p! C+ `
- server.send(200, "text/html", serverIndex);
, t8 g9 H. Y. d: |8 h) {. | - });
' J4 h+ W/ S! _$ z# B% u - server.on("/update", HTTP_POST, [](){7 F! J7 [" B/ G3 `7 |, g! f
- server.sendHeader("Connection", "close");
6 r. I5 b3 w1 f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 p5 N: R! {9 B$ v" s6 V
- ESP.restart();6 P2 b7 D3 z3 V
- },[](){5 t9 h4 R+ |8 y$ @
- HTTPUpload& upload = server.upload();
R- @5 A- L% {0 V: ? - if(upload.status == UPLOAD_FILE_START){+ o X2 U) Z6 L2 ?; U. k X
- Serial.setDebugOutput(true);6 M" m& M6 e9 Y0 z4 o) e
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 ]. o6 f( T6 A7 J0 F$ Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- Z; @5 X& y3 n: T9 [
- if(!Update.begin(maxSketchSpace)){
( l# R7 h# }+ |4 k* p; ] - Update.printError(Serial);4 R: H3 O/ f( g- A
- }
2 e2 I- \. P# u/ y2 ~& T6 b: R - } else if(upload.status == UPLOAD_FILE_WRITE){$ P* E2 q8 _9 z1 N
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* H9 R# ^2 G1 k [- W' ]
- Update.printError(Serial);
& h0 q- t, T6 k6 t0 X - }
/ N9 b N8 @4 @! q- T7 J/ U# v% I8 i - } else if(upload.status == UPLOAD_FILE_END){
: P/ c: j2 S9 B% V, {; N$ v1 f7 N - if(Update.end(true)){( X9 Z5 k: k! ]. I5 ^, \. |$ Y: r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) [2 l3 U5 H4 ~: n9 A6 v$ @
- } else {
9 t& j$ v; l5 _# A( L/ l) B - Update.printError(Serial);
" V0 u# {7 c; A, K5 q/ `, Z$ u7 l - }
% f f: i9 [5 s' w4 s. B - Serial.setDebugOutput(false);
: J G$ E" K. b$ C4 A: ^# n# q } - } T/ T6 N% J3 p& H
- yield();
) B; Q. D/ X: F - });
: p8 J' s2 _% e - % J+ S4 P \+ s9 V1 `2 `
- digitalWrite(2,0);
1 O1 ^' I1 ?9 ^- |0 U$ X4 e' F - mainAction();' L ]+ O# q- N7 y* a
- if (digitalRead(0)){
# u9 s& A. G ?% `0 o - ESP.deepSleep(0);0 a& n7 ]9 A- j1 B) n
- } else {/ _8 ^7 x! V, K3 S* j; D+ P! |
- server.begin();
0 a1 @5 G1 }& s. K/ J; [9 m3 t7 D - }
% G1 Z6 t/ X- w" J$ F& C - }
4 j6 I' g7 O9 q0 e n0 g - void loop() {
( ^/ v; n' d$ b& P1 ]! m% i - server.handleClient();
7 X4 |) i0 r, o( }0 u' F% b- r - delay(1);1 E- u8 x/ S$ i, ^* U
- }
8 ~$ j+ P! ?& F1 C) r - String doGet(String url){
- M5 \6 j: N' q& m( i- r& P - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 d, L; U0 p% q' C1 c) x - HTTPClient http;
2 m: [" q$ o) W$ Y: W% }& R - Serial.println("[HTTP] begin...");9 ^ `4 n Q+ G" o s$ `
- if (url.startsWith("https")) {$ V3 h- Z) b9 a! d1 u2 O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 `( o! L% u; c1 R# I3 d8 l
- } else {
J; D4 W& r$ n: | b$ E+ f3 P) _ - http.begin(url);
8 Y+ R& m; {* I) T - }. B7 I; \9 Q" u6 q u6 M# o
- Serial.println("[HTTP] GET...");
+ h) j% T1 f$ c& o7 E" Z - int httpCode = http.GET();
9 q4 s0 g1 Q3 N1 Y t - if (httpCode > 0) {: ?+ K/ J& {" k: _& o5 k
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 e9 x& x8 @4 v7 ] - if (httpCode == HTTP_CODE_OK) {
/ s8 M. z% R1 g, F8 a, @ - String payload = http.getString();# {, {" D4 `# \
- Serial.println(payload);
; M1 H# n. ~/ @$ y - Serial.print("\r\n");
/ I* a: R$ a" g: M6 s4 v - return payload;
9 ?+ _) U" z1 C - }
& n5 [% {; D8 \3 ^ - } else {
5 F1 `8 j6 C7 P5 o+ d m+ T% X - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 a8 Z. B1 B( R# M. z7 [; d+ W3 j7 x - http.errorToString(httpCode).c_str());' w4 u! |0 Q* y4 E7 L ?
- }7 B( \8 l5 P5 E
- http.end();" @$ @3 H1 m# T- B
- return "";
9 n7 {; [$ |* \ - }
8 a5 c9 |9 i0 U5 t, _ - }2 x$ n1 `# p9 |5 o
- void mainAction() {
3 S3 I* }6 v/ k9 }3 z- r - // 发送请求
2 J2 E- t0 U) q5 S. X - doGet("http://google.cn");3 W, [9 I& F: N
- }
# L" D' I, X0 h# g/ p c g; m; i
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