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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)
4 u$ I4 l1 Q6 {" \% T- #include <ESP8266HTTPClient.h>
: F$ z$ u4 P% o# o$ h- X& _6 L# j - #include <ESP8266WiFi.h>
4 }/ G$ C" A# U' X - #include <ESP8266WiFiMulti.h>2 b, G% |- v5 ^7 ~/ ?% A- Z
- #include <ESP8266WebServer.h>- B6 G) S/ Z% u8 p7 W% b6 A: m% Q( R
- #include <arduino.h>' Z; G- Q/ ]' s5 E; s
- ESP8266WiFiMulti WiFiMulti;
. a( I' ~. l+ b, l& v - ESP8266WebServer server(80);# t% v0 M7 S4 p$ t' |1 r
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! B v _5 ~* v
- ADC_MODE(ADC_VCC);
/ S. G) s' ]# N. w+ }4 w - void setup() {# l7 m) g6 E+ X7 K
- Serial.begin(115200);3 V8 r7 R0 y. k$ K5 J+ I; f
- Serial.print("\r\n\n");! \7 u$ @- }" { p; q! B
- pinMode(2,OUTPUT);
" I8 o% D. p0 X6 ?8 R# c, u+ S - // WIFI
2 `# N! W( H z @9 o2 Q - WiFi.mode(WIFI_STA);
, n- k6 ] o7 j5 i - WiFi.hostname("Sparkle");
' K9 V3 [! |" f - WiFiMulti.addAP("wifi ssid", "wifi password");
4 Y; B% r$ k# j# Y$ o - int tryNum = 15;
! s+ x! ?0 b. @ P% T7 _; j- m - Serial.print("Connect WiFi");! V/ c* N/ L9 |2 f
- while (WiFiMulti.run() != WL_CONNECTED) {8 {* l( d" O& b: k5 |) H
- digitalWrite(2,0);! Z8 @8 s [3 H( D/ S3 o
- delay(200);0 W( O/ r" m6 I* R
- digitalWrite(2,1);% z/ N! m( C+ @
- delay(300); B( T: v* b1 M5 \" J# x
- Serial.print(".");8 _' z: R( Y- h9 F9 p/ }* f1 g5 E$ n
- tryNum--;% u N$ |& I/ R$ }. _* } {6 F0 w
- if (tryNum == 0) {
) q: y5 ~* `6 W0 c+ o! d O - // 1min
( K. e1 O" I: C8 k - // ESP.deepSleep(60e6);7 A& q2 r: ?7 Y; r
- ESP.deepSleep(0);
2 U; |, O) s. V" I/ p - }
0 K0 B: ]+ B# l. I- e5 z+ ` - }/ C0 d0 P/ p7 _- Y& n
- Serial.print("\r\n");. @3 s. T( y+ x" d; [# ~/ K2 g
- digitalWrite(2,1);2 Y- }& p- s( d+ M: e
- Serial.print("IP address : ");3 P$ `; S1 A/ L7 @. G" U7 i
- Serial.println(WiFi.localIP());
o) K3 }! L5 u6 \( d0 { - server.on("/", HTTP_GET, [](){
0 O. o! u" N7 e1 n - server.sendHeader("Connection", "close");% t) K. Z: ~) L! O; z+ J
- server.send(200, "text/html", serverIndex);
- j8 P& E) Q# m7 q& I% ?& @ - });
/ v% a; m4 V5 `8 _; @* j$ \2 a7 k# H- y& u - server.on("/update", HTTP_POST, [](){
. j) z& {. Q- B9 ?3 g6 \3 V - server.sendHeader("Connection", "close");
; N+ X3 k& a) F4 i3 a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! Z& V) R% J; m( O: l
- ESP.restart();; X" Y c" \- S" s7 h2 [! g/ ?) d
- },[](){
% A* h, V1 U3 v% `% _( C6 H - HTTPUpload& upload = server.upload();
i5 z' k1 `- F; X) N - if(upload.status == UPLOAD_FILE_START){. L4 D" p2 r7 B
- Serial.setDebugOutput(true);
: E* c5 v" `% s1 _" d' Q! } - Serial.printf("Update: %s\n", upload.filename.c_str());
% O" ^" P+ E, D7 h8 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! {4 P8 o8 A% q) r - if(!Update.begin(maxSketchSpace)){
+ c" b9 q7 i. C0 ? z - Update.printError(Serial);$ `! w* j: v6 M5 a& {
- }
. t$ r$ R" z# [ - } else if(upload.status == UPLOAD_FILE_WRITE){) u$ [2 D* p9 p$ h% h( X
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. x, g( B6 Z2 x1 Z# c% \ i - Update.printError(Serial);' x/ j/ ~6 y# b# p
- }3 W# t# @7 \: p) y7 Q0 \# w x
- } else if(upload.status == UPLOAD_FILE_END){
2 P4 `' S# G9 d, A( K - if(Update.end(true)){
, m* m! n, _- X+ u! c - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& I1 A y& R$ R5 M0 p4 [ - } else {. l7 M# H; @/ e3 a5 l4 l. `
- Update.printError(Serial);! ~8 B# N6 V' n6 f7 p$ ?+ i2 q
- }* j2 u9 S4 V) @1 d: w( v. g8 g
- Serial.setDebugOutput(false);
/ L+ q3 f3 P5 m/ Z/ a7 P h - }
# w M) I" T9 s - yield();1 ?* K& }1 H4 K1 a
- });; T9 z' R4 `. B( \
-
) O4 y4 r5 q( C5 r+ v - digitalWrite(2,0);' G( T' ~; e' |. c2 |4 T
- mainAction();# {2 D7 e- j' I9 o8 h5 |$ I
- if (digitalRead(0)){
9 L* E- z) B! M' J& ^0 j7 v0 A0 g3 F - ESP.deepSleep(0);9 q! ^% H) z3 n' R+ F5 I% r
- } else {, |$ {' j; ]6 B/ f
- server.begin();
: ?( w6 }1 g" d1 e0 B - }
; e! r/ p# b$ I0 P) D9 t - }' G# D/ C* m" L1 n) p
- void loop() {
4 [) J5 _$ g4 |& w6 L4 T2 O - server.handleClient();0 p9 ?, e' k+ H6 V. _
- delay(1);
( u% Q, l( Q9 r4 e$ }) d - } X6 m4 N% s. ~- y- v$ j! f: r
- String doGet(String url){
5 u# @% H! N" Y! U o' g - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 X3 H* Q: w& ?+ K! B - HTTPClient http; x9 X( U; ]8 \4 p. c
- Serial.println("[HTTP] begin...");
' q6 r6 E' t! R* W - if (url.startsWith("https")) {6 @9 R: j( ?0 C9 u- e- r5 t
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; S) \$ g: G7 `" x! k6 n- i
- } else {
6 \5 t; z) j* m3 M" j, V - http.begin(url);$ j% Y1 R; d8 q4 W
- }
( X |* A. ? S3 |. p6 i2 N - Serial.println("[HTTP] GET...");
7 q0 }6 j) w1 T - int httpCode = http.GET();! e, x3 u1 p% |
- if (httpCode > 0) {0 _: R* y" k6 j/ p
- Serial.printf("[HTTP] code: %d\n", httpCode);
' r Y% M) J/ b& p2 P$ y% O. `2 r$ A - if (httpCode == HTTP_CODE_OK) {
# d, V k8 D& y" [ - String payload = http.getString();
% A% M# y* ?( Z! |7 o2 \& l) ^% [ - Serial.println(payload);
; H9 A' c! Y' T/ v - Serial.print("\r\n");
: Y7 q8 E7 ~' O& E" p) q# Y/ Z - return payload;
* |+ A8 x" @! e& N* K - }
- Z' y6 D* y" q0 f, a3 t1 Z - } else {- N0 H3 N+ y4 i0 @4 e
- Serial.printf("[HTTP] GET... failed, error: %s\n",
. c$ r( U! {. V, { - http.errorToString(httpCode).c_str());
- {6 } J# p, R+ B/ P - }
" }' T0 l1 |" c1 L3 v3 H& F - http.end();4 y0 ]. i. q7 O( c' U
- return "";
* K+ ]6 R/ A& n/ {" H - }) }& g. I0 w# f$ F" k# ^$ @
- }
1 o+ A5 p' g! `! C) B/ m5 } - void mainAction() {' ^: J& j9 F* [3 C
- // 发送请求4 U- I) K2 m3 K- m3 S! c# o
- doGet("http://google.cn");+ N3 q6 u) w) O1 }/ O
- }( Z: N8 L$ W0 o3 [& a
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