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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 V' T" k1 U' r! Z; h% e9 f- #include <ESP8266HTTPClient.h>
0 k: v0 f3 L* w# W4 x) c3 A - #include <ESP8266WiFi.h>- \9 b, J' s5 k/ j% Z: j0 j
- #include <ESP8266WiFiMulti.h>) g# X% [0 L- d$ p0 ^: X
- #include <ESP8266WebServer.h>' Q! h3 n! r! m7 w: P
- #include <arduino.h>
6 W% u @/ ]; f& g L/ ]. k f - ESP8266WiFiMulti WiFiMulti;
% [) s# q1 u; t+ F6 L2 J8 d& ? - ESP8266WebServer server(80);
; y( f: e( I# X7 I j - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ ~- L4 O7 z: j* R - ADC_MODE(ADC_VCC);
: Y3 Z4 \* k x$ s# i+ [' e$ m - void setup() {
8 B0 Y+ G8 |; W7 Y" }" [ - Serial.begin(115200);
@: R8 J9 _+ a% w9 J - Serial.print("\r\n\n");0 s ~$ i9 U/ z0 T `7 b& V
- pinMode(2,OUTPUT);9 @7 U$ U( O/ _) n4 K
- // WIFI
2 H' Y. G8 h/ l8 w! c7 f; r% H - WiFi.mode(WIFI_STA);
+ K. G/ |5 Y% G" K8 w- h; V: k - WiFi.hostname("Sparkle");
; d! V7 Z5 u8 J1 n8 L- M - WiFiMulti.addAP("wifi ssid", "wifi password");
: l3 k0 f# |$ D A1 O* c - int tryNum = 15;
# |$ `. [- G. [# {* F% E - Serial.print("Connect WiFi");
( E1 q5 x0 z6 ]* t# f5 t5 ~ - while (WiFiMulti.run() != WL_CONNECTED) {
4 k: _& H% s2 I q. f6 f, n - digitalWrite(2,0);4 v8 |6 s. t7 R; k& G
- delay(200);! g Z+ O4 ?( O* u: [ T' g
- digitalWrite(2,1);2 j6 m* ~6 G% e6 ^( O+ ]# u
- delay(300);
, R: @/ u8 O5 M - Serial.print(".");
" m. g- {8 ~( C- Q5 @0 H5 j1 Q9 r - tryNum--;7 N9 q* I1 e( `
- if (tryNum == 0) {
: n8 k3 i8 F8 k; ^; Y - // 1min
0 S" o" h- S8 U' r" m - // ESP.deepSleep(60e6);" {6 ?2 ]: {9 Z b g
- ESP.deepSleep(0);
$ t; I! a* Q: W9 d - }7 `$ y; x& n: ]6 n7 ~
- }
& i& c/ ~, S5 m9 a) }& l5 L8 R - Serial.print("\r\n");
3 R/ z* Z/ \, m - digitalWrite(2,1);0 g- Q- y7 F; r6 v$ F
- Serial.print("IP address : ");
! h3 O3 A6 R, q3 I* K - Serial.println(WiFi.localIP());2 J- `7 B4 v' w @
- server.on("/", HTTP_GET, [](){9 O; r. l' w6 F9 p
- server.sendHeader("Connection", "close");: ~; i; w9 u4 ]7 P2 r" z4 o$ e5 S
- server.send(200, "text/html", serverIndex);9 j& h# h# |% T9 v% ^$ N
- });
# l; \: p$ m4 t0 y5 }4 w - server.on("/update", HTTP_POST, [](){
9 X% n. d0 z5 A+ Y+ L1 g, B2 e% I - server.sendHeader("Connection", "close");
3 c) z* a( k, `) W( t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 F8 W8 f( ?; e0 Z - ESP.restart();6 w+ D8 C8 b; ?$ }1 C$ G1 m. K
- },[](){
, E, z- `' L- M2 Y - HTTPUpload& upload = server.upload();2 N7 M U: k4 c- I
- if(upload.status == UPLOAD_FILE_START){
4 k) t U( g% o% B - Serial.setDebugOutput(true);, L( v, b2 L- I+ P4 V( k' D
- Serial.printf("Update: %s\n", upload.filename.c_str());& @7 G# w) b6 |+ t( o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' K# A$ \- _' |" A+ R- @! {$ ?+ w
- if(!Update.begin(maxSketchSpace)){) R; V6 c- x7 W/ T
- Update.printError(Serial);
0 P( t! Z% r8 N - }
( {2 u/ ]" i, X5 k$ [, ?# q( }7 b - } else if(upload.status == UPLOAD_FILE_WRITE){0 s" D0 u( j9 w1 o1 Q- w; U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ t9 U8 v: x" B1 z
- Update.printError(Serial);1 V3 i& R) m4 p- F$ `! I2 k p% a
- }
* W, }6 U! O. {/ q9 _4 L - } else if(upload.status == UPLOAD_FILE_END){
& `( `* |5 H* D) z( f% ^2 W - if(Update.end(true)){
* `) J0 I! w: k) D: Y( G - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' r) m6 U; `5 s( D- t) Q3 f" C
- } else {( F) y8 V* Q6 K8 u. ~/ j5 u
- Update.printError(Serial);! N$ l# j( }0 S7 g& c0 g' f
- }" u( L2 ^# z( t) B& W
- Serial.setDebugOutput(false);# m9 ~, l, h) q; u9 g
- }* L7 z1 W; G4 B. o
- yield();
; U1 y( }1 ~( X - });
$ a$ h' y& H. ~' X6 Z n5 ~2 _+ O - " m; L5 A& s( Q5 v @) u' ~( t
- digitalWrite(2,0);
" U3 o0 l# i( k. y R - mainAction();
3 |! f) ?' q2 c+ d$ ` - if (digitalRead(0)){% J' g. Q7 Z' u7 z) P
- ESP.deepSleep(0);5 J% Z/ ]9 b" h1 ?
- } else {
- q1 \0 |" z- K7 l) R3 e - server.begin();
. e; I& \/ g8 i( I) G- H% | - }) A! {6 N$ A: ^- z
- }/ ^. O1 Z6 S, B! D2 B x
- void loop() {
0 s- q! t# G2 Q. g: O5 _% `, b - server.handleClient();: G- Q6 _# e) d( G5 M! @
- delay(1);
* v0 }( m. r5 C f$ H# {5 f% P - }4 }$ [. @- r* l7 A
- String doGet(String url){* n" _; _$ n6 Y: |- A# U- A7 E1 b
- if ((WiFiMulti.run() == WL_CONNECTED)) {. V: M- z8 m0 u8 R; ]. o6 ?3 g O
- HTTPClient http;1 u& l8 J$ C: m& Y
- Serial.println("[HTTP] begin...");2 X6 n# F1 J; D
- if (url.startsWith("https")) {: b- R2 l* y) q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 ]. d& H2 w; X3 f - } else {
" g% u% ], q) X4 O0 ?# ^$ ^1 \2 D - http.begin(url);
) K. ~( {$ |- `& A) d2 b2 B, q! x - }3 J% M' G) M; n. o9 U
- Serial.println("[HTTP] GET...");
, h3 s2 j/ M* g; t3 f& T5 M7 \+ @! u - int httpCode = http.GET();7 O, Z# ?5 a6 E/ p+ Y0 M
- if (httpCode > 0) {+ V. a! |0 g) I# ?9 G% q4 q( H5 G
- Serial.printf("[HTTP] code: %d\n", httpCode);
. @7 @; G0 t' ?! e6 y. q - if (httpCode == HTTP_CODE_OK) {
; m- x" K- V' T5 D7 Q- k% ~ - String payload = http.getString();! A2 V* d/ O: X% ]5 H! l5 O
- Serial.println(payload);0 x4 W, i* e+ d: i* r
- Serial.print("\r\n");. o% a- o; p& T* E( W$ F
- return payload;2 T' ?: H( f! i0 R: `8 H5 S9 H
- }! M2 P! y2 I5 m6 a' U+ g7 S+ W4 x
- } else {0 d4 a. S( G" r( Z
- Serial.printf("[HTTP] GET... failed, error: %s\n",
$ `; s, ]) a- Q& E( p - http.errorToString(httpCode).c_str());# L% e2 A& ^! a# t
- }
$ n9 v% n; i5 k( U - http.end();* \' K7 u: U3 x! v m6 U! Z
- return "";4 n9 {' g) k& c( `" n( \
- }2 O! Z7 A, N. h7 |/ {6 v
- } V7 h. d1 ]# g& y
- void mainAction() {+ ^0 H& d* \9 i( w9 ~9 r! X( E
- // 发送请求
2 Q# R. p2 h' h2 B - doGet("http://google.cn");
! T. a4 g& j8 F6 \5 v- I - }3 [* E0 n+ G4 A0 r n9 r N% Q! @
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