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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)
9 z0 t6 `, v, e: @, P- #include <ESP8266HTTPClient.h>
# A, ]; W6 x X0 \ - #include <ESP8266WiFi.h>
3 B: ^/ F0 d. r# w* [ - #include <ESP8266WiFiMulti.h>
% M2 @# L; t6 s& }0 ?4 ] w, ?% f4 ~ - #include <ESP8266WebServer.h>
* F& b6 }4 j5 K% i/ J; Q- w, V - #include <arduino.h>$ y3 j6 R' Q/ z5 C* z
- ESP8266WiFiMulti WiFiMulti;3 S. v( l `" Y e3 h4 I
- ESP8266WebServer server(80);
5 r' h" r$ L! w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ v9 l4 m% j0 V% H/ @# S
- ADC_MODE(ADC_VCC);
1 M% u" X4 D% i3 @; Y' n: l - void setup() {
, M: w, C3 t3 T- m - Serial.begin(115200);3 |0 l: x1 K3 B% J0 {# n6 S+ D( S" ]
- Serial.print("\r\n\n");: C9 i# I2 \# @/ m
- pinMode(2,OUTPUT);3 l7 B1 }6 c- v5 D% G0 M
- // WIFI
, R# N# B, K; j9 d3 |2 c - WiFi.mode(WIFI_STA);
' ~) r6 y" `; ^$ E - WiFi.hostname("Sparkle");* U! Q( d5 ]) k9 x' B, h
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ e* [ s [# W- K0 c4 t; Y9 h - int tryNum = 15;
5 N) v2 O7 ^- e$ ?) X) f - Serial.print("Connect WiFi");2 s0 ^3 R. e2 ]" N9 F
- while (WiFiMulti.run() != WL_CONNECTED) {3 V& G8 f! b8 {6 G
- digitalWrite(2,0);
4 e9 x2 O5 V* A1 n" N% N$ b - delay(200);
# ~' R' W5 }. u, j - digitalWrite(2,1);1 j, }1 O6 h- f4 c5 Q9 ^$ }
- delay(300);; M6 N# p, u9 ~* G$ J
- Serial.print(".");- } t4 o) V) ^6 v* m2 M. G* r& o
- tryNum--;
4 G: e5 d9 c9 P. | - if (tryNum == 0) {
0 k5 O* S/ {2 R5 v' Z. B* r - // 1min
2 x- d, Z8 s5 `' m! H8 x! ] - // ESP.deepSleep(60e6);
9 X- \. y) u6 q; p5 o - ESP.deepSleep(0);% a2 R4 f0 T# C
- }
! E7 z/ k7 m% }6 h* t" v - }3 r2 O7 ?+ @7 ^5 O
- Serial.print("\r\n");$ ^" ?% B# i1 _$ {; X2 M8 R" k5 l
- digitalWrite(2,1);
# n3 t2 w0 c$ B. @, L - Serial.print("IP address : ");
( o) L) l: Z- x) _5 }+ q/ x - Serial.println(WiFi.localIP());
9 O& S- |1 }, }) y' ~) [5 c - server.on("/", HTTP_GET, [](){7 {5 x9 y9 K" i/ X3 F7 F: s& p
- server.sendHeader("Connection", "close");5 n' c O& h4 I5 [, [/ p
- server.send(200, "text/html", serverIndex);0 F. e3 T! j7 U* v( h* r. X; n; v, i# f
- });' O8 q2 M( E# @ _/ M8 P9 |
- server.on("/update", HTTP_POST, [](){
8 U2 z4 |. w# x. ], t - server.sendHeader("Connection", "close");
# L' F3 {9 u3 s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. c( ]% ^1 T. A" B* A( H4 X
- ESP.restart();
/ f, y2 V. k$ ^) T' O! @, C - },[](){+ m; L5 J* c- T' { G% \
- HTTPUpload& upload = server.upload();$ `# c! P; J' F6 V$ ?6 \9 L) N& N
- if(upload.status == UPLOAD_FILE_START){
$ J0 F5 M% T' A% s: h% o/ E - Serial.setDebugOutput(true);
8 d2 E! ^ f% S) f6 G - Serial.printf("Update: %s\n", upload.filename.c_str());& N" `! F7 D. j# c
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 T) S5 }* W7 i1 \
- if(!Update.begin(maxSketchSpace)){
9 L" u' l3 e9 r1 H$ _ - Update.printError(Serial);
# B- y, Q- a# T1 \7 G - }4 G- _) y" z# v+ t3 h. T: w* B
- } else if(upload.status == UPLOAD_FILE_WRITE){! b: u8 T \. }5 E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
$ l( `4 A. `& r' J$ f" Y - Update.printError(Serial);6 r& a ~! ^3 {! V9 X8 s5 v
- }
8 L: \" P& ~0 X7 Y - } else if(upload.status == UPLOAD_FILE_END){7 v' O, j- m, r) Y: ^
- if(Update.end(true)){9 T) p7 m/ ^$ C. m" S) M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); Y. B$ B, P) J' _+ Z
- } else {3 c6 w9 S! J, R4 _
- Update.printError(Serial);, `6 }$ i! R% i! r( D
- }3 E8 o3 D, K; E7 z
- Serial.setDebugOutput(false);/ u1 [( K4 ?3 M0 |! U4 v
- }0 X3 Z: h( L) a* s3 [1 J7 y
- yield();2 J2 ]5 F9 K2 g
- });/ q8 J7 X: Y; r
-
# {( q; K6 Q5 t$ J - digitalWrite(2,0);
/ G) M, l4 B9 }! T: P9 P! P5 ] - mainAction();
9 |& n" y& n. F1 a) ?9 v1 [ - if (digitalRead(0)){* \8 _; m I+ F4 G$ V
- ESP.deepSleep(0);6 k h, l* ~0 Y: l; c! @
- } else {
0 V, i! o# |2 f9 S% i# ^ - server.begin();
8 w8 F. J& @$ l+ u! G - }
% o3 g2 z' g7 v; L - }4 c% ?: M0 ~: S( T, g; P* c
- void loop() {
p; P* o7 T& i( D6 ]+ m - server.handleClient();
/ l+ K* H5 d! L" t2 i - delay(1);0 _- Z: t/ ~ _% _0 ~
- }" T" ]6 ?0 h$ k# }3 _
- String doGet(String url){
8 [9 j7 N# v2 A3 s - if ((WiFiMulti.run() == WL_CONNECTED)) {, L/ ?; O: o9 @) }0 w
- HTTPClient http;9 E2 H g/ |' P' N* v
- Serial.println("[HTTP] begin...");
5 z5 D8 V% Q* \4 L! Q - if (url.startsWith("https")) {
# v" i, u- j @ \' m( Y/ F1 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ ^( x! t1 H/ U - } else {2 T. L/ N* g0 i) Z) ~' K; x
- http.begin(url);
# a$ ~0 J4 i! M8 G2 r - }* d# y- ]# Q. A6 h+ G" U; o8 h n" b8 p
- Serial.println("[HTTP] GET...");
3 U. n. d; M/ {" [+ q, o - int httpCode = http.GET();
/ t4 `# G" h; {4 `: C% w6 D - if (httpCode > 0) {
: L! B: Q% U0 Q1 l5 m - Serial.printf("[HTTP] code: %d\n", httpCode);
, c6 J) g* i" V- R, v - if (httpCode == HTTP_CODE_OK) {
( r+ ?4 y; m6 Q& l6 q7 U2 w4 R. _ - String payload = http.getString();
" |/ q+ {5 o+ [0 w( h9 Y( O9 } - Serial.println(payload);
$ z6 x4 u! ^2 n `- g5 O' n2 R - Serial.print("\r\n");: ?5 _8 S' e( }9 u% I5 M3 S- u; k
- return payload;
" q, h" N( t# i7 w, p - }
9 @: c0 L2 W* |( U& A- q. [" ?& o - } else {9 b5 t6 j( `* s5 D5 D
- Serial.printf("[HTTP] GET... failed, error: %s\n",
$ ^/ Q8 J" y3 v+ T* G) [ - http.errorToString(httpCode).c_str());
/ q) {' }3 E u( ^' o - }
! o% s# \2 ?% a. N - http.end();
1 J5 L a2 a4 D+ G7 u - return ""; j5 ~! ?: g4 t% l1 S
- }2 @ R8 \3 q3 q+ F" ^+ w* o
- }
i. _, f5 y! G, q' A# q1 k. t3 Q! m6 o - void mainAction() {
' l( [, Y/ `& z$ l/ ^! Y: J" A - // 发送请求# O7 u9 G# M. F! ^9 h( k' U6 j7 G) V2 g
- doGet("http://google.cn");3 M" k2 w0 G: R' h8 R0 g1 M( n) ], ^
- }
* O) G& G! F; c
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