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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)
1 _% T: m g% |" g& J3 C% Z2 H" y- #include <ESP8266HTTPClient.h>
0 P; R2 ?; c1 F: _3 a - #include <ESP8266WiFi.h>
! K. g9 v5 ?. s: A0 ^ - #include <ESP8266WiFiMulti.h>) u0 K+ x! [# j# l0 ~* Q+ g7 q
- #include <ESP8266WebServer.h>6 {; x9 E: n7 v. _
- #include <arduino.h>1 N5 S7 C! m6 n1 O. j& d2 J# |
- ESP8266WiFiMulti WiFiMulti;# a' {. Q5 d1 ]; s, Q Z$ ^, \
- ESP8266WebServer server(80);
" N( J N4 U, i% I5 c, s - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! d& T5 {: y( b- O* x5 T - ADC_MODE(ADC_VCC);) H+ B% \, C* l
- void setup() {
) u9 Q- D: }: c2 t$ a1 {' g - Serial.begin(115200);
* p; Y( M' z7 }3 f' o1 | - Serial.print("\r\n\n");0 e0 V3 N5 @2 f- T: o
- pinMode(2,OUTPUT);$ P9 ~& r" _) c- s) R% S
- // WIFI' ~* o8 L! L7 O- X( M
- WiFi.mode(WIFI_STA);/ T$ Q) _1 |" I( y+ s9 q' Q2 i* H4 B
- WiFi.hostname("Sparkle");; A0 S+ D% D; b8 w; _9 @) E
- WiFiMulti.addAP("wifi ssid", "wifi password"); z6 o9 [3 n5 T) d0 @! ]/ N8 V9 g7 ~$ c
- int tryNum = 15;9 ]" g2 a6 ~; D Q: a: i! c2 e$ z
- Serial.print("Connect WiFi");( b/ Z4 _" e( d0 d4 h
- while (WiFiMulti.run() != WL_CONNECTED) {
k, a2 p( @. r0 G: C# c - digitalWrite(2,0);
. W/ r+ |$ n- E3 d# G - delay(200);8 P j7 t; N9 \
- digitalWrite(2,1);
* [( n9 F( B) C6 x' V - delay(300);
# L5 q' @, P1 O( d' s5 U0 `# e - Serial.print(".");
# X" P$ S3 ^" Y" Y% ~6 u - tryNum--;* G2 j g& M9 l8 X, K* l% a5 r& }
- if (tryNum == 0) {# n# Z. f( K$ L0 q
- // 1min+ f2 g s6 Z7 }$ h1 r6 ?. X0 B T. t
- // ESP.deepSleep(60e6);& x, t8 T7 H3 m) ]. s9 O# Q
- ESP.deepSleep(0);# D& ]0 B7 p2 S- f
- }
- x E2 i6 B. K' D" q - }: Z7 O* U% S% i& G8 l6 ~6 v- Y1 y7 q
- Serial.print("\r\n");0 B9 A* B" p6 ?, ?: O
- digitalWrite(2,1);
5 A$ r+ _* q$ Y) a6 P, l; b - Serial.print("IP address : ");
4 s6 B! @ @2 F - Serial.println(WiFi.localIP());
; G9 v" y% j4 ~) [, q4 b O6 F3 _ - server.on("/", HTTP_GET, [](){
6 K* f; v3 G! [) u; p7 k - server.sendHeader("Connection", "close");
: t# b$ c6 n7 b0 f - server.send(200, "text/html", serverIndex);
% c, x% y' |8 _" P - });
9 b+ T" j: y' m+ _ - server.on("/update", HTTP_POST, [](){
$ k. F5 p4 X9 c g2 a0 q - server.sendHeader("Connection", "close");
: [9 g. S# o' g# Z7 ^+ D2 z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 g& O9 ?* [1 Q7 b; I
- ESP.restart();
! T0 y; U% s( C2 h% r - },[](){
' I* V, Y8 l" `6 O - HTTPUpload& upload = server.upload();3 D5 A* c! d6 M% C1 k! m# Y: L
- if(upload.status == UPLOAD_FILE_START){% U/ g* k" d' t6 J) q# o6 F
- Serial.setDebugOutput(true);% v: Y: G$ B9 R
- Serial.printf("Update: %s\n", upload.filename.c_str());, I- z9 Z9 W% w6 r9 l; E& Y, g# R k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" P! `4 R! w$ [ Z: d! j9 Z5 R
- if(!Update.begin(maxSketchSpace)){7 s5 _& h+ c6 U6 ^" ~* g, t. W7 p
- Update.printError(Serial);
/ G2 r7 Q/ W; b5 {8 I - }
' S" h" Y4 \4 Q% c7 D4 e8 I# o - } else if(upload.status == UPLOAD_FILE_WRITE){9 d8 o9 u* g$ L6 ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" m. g6 {- `1 D7 ?" p, F
- Update.printError(Serial);
( t V3 p J" B, r - }
- S* L9 ~% C( h0 g }% I; J, [ - } else if(upload.status == UPLOAD_FILE_END){3 V' ?# Z( }& @ p. K4 |/ u% {/ f
- if(Update.end(true)){
6 Q# k c9 N! f% `* U- O: |) z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ s E4 u1 O9 G( ^7 p
- } else {
1 C4 z; N: A) f* |; j - Update.printError(Serial);
. ~, Z \' a' K, N0 _ - }
- A4 U% V3 v/ o7 k# h4 r+ e - Serial.setDebugOutput(false);$ ^9 e9 d$ r9 F/ t5 v0 @
- }
$ t6 s: S" c6 f6 s - yield();, x/ ^* }5 ?5 n; Z1 t, f
- });
6 f( R5 n' W# \ -
* P2 W/ I9 a9 ?* P - digitalWrite(2,0);
% |. ~+ a9 _! Z5 G B# f6 X - mainAction();( Z: g5 e0 H/ W* W. u8 |
- if (digitalRead(0)){
/ [& [+ j( f6 q: u0 F* u! Z - ESP.deepSleep(0);2 r8 H+ I' D( C! g8 }
- } else {
$ _6 G. W' k5 [/ T9 s# ~& d9 ~ - server.begin();
7 o% G9 C, M0 H! b2 M - }
( `' Q: J# P+ j3 }$ ^! P - }1 t6 k- ~+ S" h: x
- void loop() {+ j/ q9 } L6 S
- server.handleClient();4 m5 J) X+ a- M. R8 o8 z
- delay(1);
$ J% q/ u' ^ H" Q6 v - }
2 u% u, V) O6 I5 ^5 o$ X - String doGet(String url){# f5 Y8 G0 D' l- q
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 P9 R7 Y( y* \9 t4 B7 j6 H) `
- HTTPClient http;
% Z3 q _. ^, n" U/ g) T E" v - Serial.println("[HTTP] begin...");
: z2 o$ f: ~) T7 i, a" j6 ~ - if (url.startsWith("https")) {, x; p% {7 p& I9 h$ U& H6 m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( C: I' f: w% [. p
- } else {+ a* R, B" ?/ S, _( r F4 f
- http.begin(url);2 _6 n S- a! m2 d4 m T
- }( r" j/ I/ b1 ]* N6 G
- Serial.println("[HTTP] GET...");- j! z. J' d) V( m) p" e8 x; m. y
- int httpCode = http.GET();
+ n/ ^( p) R" t7 V - if (httpCode > 0) {
6 O$ f0 }; s% { - Serial.printf("[HTTP] code: %d\n", httpCode);$ O/ o1 k; L+ x, V6 p% J9 H- N- O
- if (httpCode == HTTP_CODE_OK) {: J/ p* p6 d. j: l& t- V
- String payload = http.getString();$ d V t: t# O6 j
- Serial.println(payload);9 S p/ k5 S( p: X0 h6 u
- Serial.print("\r\n");) J7 w% d* w7 |& u5 Q4 R1 r
- return payload;
2 ]$ W0 m6 b. u. g+ D7 c) f# E: L - }+ L( c- Z) Z8 N8 T' g
- } else {
; j' T7 _% `& H. H - Serial.printf("[HTTP] GET... failed, error: %s\n",$ j$ X/ v" G& P2 `+ n8 J w
- http.errorToString(httpCode).c_str());
# \, P# c+ m6 Z6 X4 m$ E2 ~. I; r+ u - }
x% @$ `( q Q/ e1 w - http.end();
: s6 e; l2 n+ R+ y/ _9 H - return "";
A# w: Q& p- R" P - }- u3 K/ S! J* D2 L
- }, ^! u- M1 m# d
- void mainAction() {
4 L. t' {) ^' @1 S, B - // 发送请求# n+ p$ p( K3 W+ Q+ g+ \: T
- doGet("http://google.cn");% ]4 T9 E2 O B6 | k
- }) T7 a" c% r3 [( j" q9 f& b* P0 v
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